Bug 1313295 - Merge mortar into mozilla-central. r=peterv

--HG-- extra : rebase_source : 196b777aae3f41d477c35001ba284a6c213ea8d6
2016-12-12 19:30:00 -05:00 · 2016-12-12 19:30:00 -05:00 · 5d827f498b
--- a/browser/extensions/mortar/Makefile
+++ b/browser/extensions/mortar/Makefile
@ -0,0 +1,54 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# We keep the Makefile until the mortar is integrated into gecko build system.
+ifeq ($(shell uname), Darwin)
+	DLL_SUFFIX = .dylib
+	CXX = g++
+	CXX_FLAGS = -std=c++11 -g -fPIC
+	LD_FLAGS = -dynamiclib
+ifdef DEBUG
+	CXX_FLAGS += -DDEBUG
+endif
+else ifeq ($(shell uname), Linux)
+	DLL_SUFFIX = .so
+	CXX = g++
+	CXX_FLAGS = -std=c++11 -g -fPIC
+	LD_FLAGS = -shared
+ifdef DEBUG
+	CXX_FLAGS += -DDEBUG
+endif
+else
+	DLL_SUFFIX = .dll
+	CXX = cl
+	CXX_FLAGS = -nologo -EHsc -Oy-
+ifdef DEBUG
+	CXX_FLAGS += -LDd -DDEBUG -Od
+else
+	CXX_FLAGS += -LD
+endif
+	LD_FLAGS = -link -dll
+endif
+
+all : ppapi/out/rpc$(DLL_SUFFIX) ppapi/out/interpose$(DLL_SUFFIX)
+
+ppapi/out/rpc$(DLL_SUFFIX): ppapi/out/rpc.cc host/rpc.h host/rpc.cc
+	$(CXX) $(CXX_FLAGS) -I. -o $@ host/rpc.cc $(LD_FLAGS)
+
+ppapi/out/interpose$(DLL_SUFFIX): ppapi/out/rpc.cc host/rpc.h host/interpose.cc
+	$(CXX) -DINTERPOSE $(CXX_FLAGS) -I. -o $@ host/interpose.cc $(LD_FLAGS)
+
+ppapi/out/rpc.cc: $(shell find . -name *.idl) $(shell find . -name *.py)
+	cd ppapi/generators; python idl_gen_rpc.py --out ../out/rpc.cc ; cd ../..
+
+json/test: json/json.cpp json/json.h json/test.cpp
+	$(CXX) -I./json -o $@ json/test.cpp
+
+test-json: json/test
+	@./json/test && echo "OK"
+
+clean:
+	rm -rf ppapi/generators/*.pyc ppapi/generators/*~ *~ ppapi/out/* json/*~ json/test *.obj
+
+.PHONY: all test-json test clean
--- a/browser/extensions/mortar/host/common/opengles2-utils.jsm
+++ b/browser/extensions/mortar/host/common/opengles2-utils.jsm
@ -0,0 +1,70 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+let GLES2Utils = {
+  bytesPerElement: function(context, type) {
+    switch (type) {
+      case context.FLOAT:
+      case context.INT:
+      case context.UNSIGNED_INT:
+        return 4;
+      case context.SHORT:
+      case context.UNSIGNED_SHORT:
+      case context.UNSIGNED_SHORT_5_6_5:
+      case context.UNSIGNED_SHORT_4_4_4_4:
+      case context.UNSIGNED_SHORT_5_5_5_1:
+        return 2;
+      case context.BYTE:
+      case context.UNSIGNED_BYTE:
+        return 1;
+      default:
+        throw new Error("Don't know this type.");
+    }
+  },
+  elementsPerGroup: function(context, format, type) {
+    switch (type) {
+      case context.UNSIGNED_SHORT_5_6_5:
+      case context.UNSIGNED_SHORT_4_4_4_4:
+      case context.UNSIGNED_SHORT_5_5_5_1:
+        return 1;
+      default:
+        break;
+    }
+
+    switch (format) {
+      case context.RGB:
+        return 3;
+      case context.LUMINANCE_ALPHA:
+        return 2;
+      case context.RGBA:
+        return 4;
+      case context.ALPHA:
+      case context.LUMINANCE:
+      case context.DEPTH_COMPONENT:
+      case context.DEPTH_COMPONENT16:
+        return 1;
+      default:
+        throw new Error("Don't know this format.");
+    }
+  },
+  computeImageGroupSize: function(context, format, type) {
+    return this.bytesPerElement(context, type) * this.elementsPerGroup(context, format, type);
+  },
+  computeImageDataSize: function(context, width, height, format, type) {
+    const unpackAlignment = 4;
+
+    let bytesPerGroup = this.computeImageGroupSize(context, format, type);
+    let rowSize = width * bytesPerGroup;
+    if (height == 1) {
+      return rowSize;
+    }
+
+    let temp = rowSize + unpackAlignment - 1;
+    let paddedRowSize = Math.floor(temp / unpackAlignment) * unpackAlignment;
+    let sizeOfAllButLastRow = (height - 1) * paddedRowSize;
+    return sizeOfAllButLastRow + rowSize;
+  },
+};
+
+var EXPORTED_SYMBOLS = ["GLES2Utils"];
--- a/browser/extensions/mortar/host/common/ppapi-instance.js
+++ b/browser/extensions/mortar/host/common/ppapi-instance.js
@ -0,0 +1,33 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
+
+Cu.import("resource://gre/modules/Services.jsm");
+
+let rt;
+function getRuntime(type) {
+  if (!rt) {
+    let process = Cc["@mozilla.org/plugin/ppapi.js-process;1"].getService(Ci.nsIPPAPIJSProcess);
+    Cu.import("resource://ppapi.js/ppapi-runtime.jsm");
+    rt = new PPAPIRuntime(process);
+    process.launch(rt.callback);
+  }
+  return rt;
+}
+
+addMessageListener("ppapi.js:createInstance", ({ target, data: { type, info }, objects: { pluginWindow } }) => {
+  dump("ppapi.js:createInstance\n");
+  let rt = getRuntime(type);
+  let instance = rt.createInstance(info, content, docShell.chromeEventHandler, pluginWindow, target);
+  addEventListener("unload", () => {
+    rt.destroyInstance(instance);
+  });
+});
+
+addEventListener("DOMContentLoaded", () => {
+  // Passing an object here forces the creation of the CPOW manager in the
+  // parent.
+  sendRpcMessage("ppapi.js:frameLoaded", undefined, {});
+});
--- a/browser/extensions/mortar/host/common/ppapi-runtime.jsm
+++ b/browser/extensions/mortar/host/common/ppapi-runtime.jsm
--- a/browser/extensions/mortar/host/flash/bootstrap.js
+++ b/browser/extensions/mortar/host/flash/bootstrap.js
@ -0,0 +1,74 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+Cu.import("resource://gre/modules/Services.jsm");
+
+function sandboxScript(sandbox)
+{
+  dump("sandboxScript " + sandbox.pluginElement + "\n");
+  Components.classes["@mozilla.org/moz/jssubscript-loader;1"].getService(Components.interfaces.mozIJSSubScriptLoader).loadSubScript("resource://ppapiflash.js/ppapi-content-sandbox.js", sandbox);
+}
+
+let plugins;
+function startup(data) {
+  dump(">>>STARTED!!!\n");
+
+  let root = data.installPath.parent.parent;
+  let rpclib = root.clone();
+  let pluginlib = root.clone();
+  let os = Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULRuntime).OS;
+  if (os == "Darwin") {
+    rpclib.appendRelativePath("ppapi/out/rpc.dylib");
+    pluginlib.appendRelativePath("plugin/PepperFlashPlayer-debug");
+  } else if (os == "Linux") {
+    rpclib.appendRelativePath("ppapi/out/rpc.so");
+    pluginlib.appendRelativePath("plugin/libpepflashplayer.so");
+  } else if (os == "WINNT") {
+    rpclib.appendRelativePath("ppapi\\out\\rpc.dll");
+    pluginlib.appendRelativePath("plugin\\pepflashplayer.dll");
+  } else {
+    throw("Don't know the path to the libraries for this OS!");
+  }
+  rpclib = rpclib.path;
+  pluginlib = pluginlib.path;
+
+  let pluginHost = Cc["@mozilla.org/plugin/host;1"].getService(Ci.nsIPluginHost);
+  let plugin = pluginHost.registerFakePlugin({
+    handlerURI: "chrome://ppapiflash.js/content/viewer.html",
+    mimeEntries: [{ type: "application/x-shockwave-flash", extension: "swf" }],
+    name: "Shockwave Flash",
+    niceName: "PPAPI Flash plugin",
+    description: "10",
+    version: "1.0",
+    sandboxScript : `(${sandboxScript.toSource()})(this);`,
+    ppapiProcessArgs: [ rpclib, pluginlib ],
+  });
+  plugin.enabledState = Ci.nsIPluginTag.STATE_ENABLED;
+
+  let rng = Cc["@mozilla.org/security/random-generator;1"].createInstance(Ci.nsIRandomGenerator);
+  Services.ppmm.addMessageListener("ppapi.js:generateRandomBytes", ({ data }) => {
+    return rng.generateRandomBytes(data);
+  });
+
+  let moduleLocalFiles = Services.dirsvc.get("ProfD", Ci.nsILocalFile);
+  moduleLocalFiles.append("Flash PPAPI Data");
+  try {
+    moduleLocalFiles.create(Ci.nsIFile.DIRECTORY_TYPE, 0o755);
+  } catch (e) {
+    if (e.result != Cr.NS_ERROR_FILE_ALREADY_EXISTS) {
+      throw e;
+    }
+  }
+  Services.ppmm.addMessageListener("ppapiflash.js:getModuleLocalFilesPath", () => {
+    return moduleLocalFiles.path;
+  });
+
+  dump("<<<STARTED!!!\n");
+}
+
+function shutdown() {
+  dump("SHUTDOWN!!!\n");
+}
--- a/browser/extensions/mortar/host/flash/chrome.manifest
+++ b/browser/extensions/mortar/host/flash/chrome.manifest
@ -0,0 +1,3 @@
+resource ppapiflash.js .
+content ppapiflash.js chrome/
+resource ppapi.js ../common/
--- a/browser/extensions/mortar/host/flash/chrome/viewer.html
+++ b/browser/extensions/mortar/host/flash/chrome/viewer.html
@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<html>
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
+
+  <style>
+    html, body {
+      margin: 0;
+      padding: 0;
+      width: 100%;
+      height: 100%;
+      overflow: hidden;
+      background-color: transparent;
+    }
+
+    canvas {
+      position: absolute;
+      left: 0;
+      top: 0;
+      bottom: 0;
+      right: 0;
+      overflow: hidden;
+      line-height: 0;
+      border: 0px none;
+    }
+  </style>
+</head>
+<body>
+</body>
+</html>
--- a/browser/extensions/mortar/host/flash/install.rdf
+++ b/browser/extensions/mortar/host/flash/install.rdf
@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--  This Source Code Form is subject to the terms of the Mozilla Public
+   -  License, v. 2.0. If a copy of the MPL was not distributed with this
+   -  file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>ppapiflash.js@mozilla.org</em:id>
+    <em:name>ppapiflash.js</em:name>
+    <em:description>ppapiflash.js</em:description>
+    <em:version>0.1</em:version>
+    <em:type>2</em:type>
+    <em:bootstrap>true</em:bootstrap>
+    <em:multiprocessCompatible>true</em:multiprocessCompatible>
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id> <!--Firefox-->
+        <em:minVersion>37.0</em:minVersion>
+        <em:maxVersion>45.*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    <em:strictCompatibility>false</em:strictCompatibility>
+  </Description>
+</RDF>
--- a/browser/extensions/mortar/host/flash/ppapi-content-sandbox.js
+++ b/browser/extensions/mortar/host/flash/ppapi-content-sandbox.js
@ -0,0 +1,226 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * This code runs in the sandbox in the content process where the page that
+ * loaded the plugin lives. It communicates with the process where the PPAPI
+ * implementation lives.
+ */
+const { utils: Cu } = Components;
+
+let mm = pluginElement.frameLoader.messageManager;
+let containerWindow = pluginElement.ownerDocument.defaultView;
+
+function mapValue(v, instance) {
+  return instance.rt.toPP_Var(v, instance);
+}
+
+dump("<>>>>>>>>>>>>>>>>>>>> AHA <<<<<<<<<<<<<<<<<<<<<>\n");
+dump(`pluginElement: ${pluginElement.toSource()}\n`);
+dump(`pluginElement.frameLoader: ${pluginElement.frameLoader.toSource()}\n`);
+dump(`pluginElement.frameLoader.messageManager: ${pluginElement.frameLoader.messageManager.toSource()}\n`);
+dump("<>>>>>>>>>>>>>>>>>>>> AHA2 <<<<<<<<<<<<<<<<<<<<<>\n");
+
+mm.addMessageListener("ppapi.js:frameLoaded", ({ target }) => {
+  let tagName = pluginElement.nodeName;
+
+  // Getting absolute URL from the EMBED tag
+  let url = pluginElement.srcURI.spec;
+  let objectParams = new Map();
+  for (let i = 0; i < pluginElement.attributes.length; ++i) {
+    let paramName = pluginElement.attributes[i].localName;
+    objectParams.set(paramName, pluginElement.attributes[i].value);
+  }
+  if (tagName == "OBJECT") {
+    let params = pluginElement.getElementsByTagName("param");
+    Array.prototype.forEach.call(params, (p) => {
+      var paramName = p.getAttribute("name").toLowerCase();
+      objectParams.set(paramName, p.getAttribute("value"));
+    });
+  }
+
+  let documentURL = pluginElement.ownerDocument.location.href;
+  let baseUrl = documentURL;
+  if (objectParams.base) {
+    try {
+      let parsedDocumentUrl = Services.io.newURI(documentURL);
+      baseUrl = Services.io.newURI(objectParams.base, null, parsedDocumentUrl).spec;
+    } catch (e) { /* ignore */ }
+  }
+
+  let info = {
+    url,
+    documentURL,
+    isFullFrame: pluginElement.ownerDocument.mozSyntheticDocument,
+    setupJSInstanceObject: true,
+    arguments: {
+      keys: Array.from(objectParams.keys()),
+      values: Array.from(objectParams.values()),
+    },
+  };
+
+  mm.sendAsyncMessage("ppapi.js:createInstance", { type: "flash", info },
+                      { pluginWindow: containerWindow });
+});
+
+mm.addMessageListener("ppapiflash.js:executeScript", ({ data, objects: { instance } }) => {
+  return mapValue(containerWindow.eval(data), instance);
+});
+
+let jsInterfaceObjects = new WeakMap();
+
+mm.addMessageListener("ppapiflash.js:createObject", ({ data: { objectClass, objectData }, objects: { instance, call: callRemote } }) => {
+  dump("ppapiflash.js:createObject\n");
+  let call = (name, args) => {
+/*
+    let metaData = target[Symbol.for("metaData")];
+    let callObj = { __interface: "PPP_Class_Deprecated;1.0", __instance: metaData.objectClass, __member: name, object: metaData.objectData };
+*/
+dump("ppapiflash.js:createObject -> call\n");
+try {
+    let result = callRemote(name, JSON.stringify(args));
+} catch (e) {
+  dump("FIXME: we rely on CPOWs!\n");
+  return undefined;
+}
+dump("RESULT: " + result[0] + "\n");
+dump("EXCEPTION: " + result[1] + "\n");
+    return result[0];
+  };
+
+  const handler = {
+    // getPrototypeOf -> target (see bug 888969)
+    // setPrototypeOf -> target (see bug 888969)
+    // isExtensible -> target
+    // preventExtensions -> target
+    getOwnPropertyDescriptor: function(target, name) {
+      let value = this.get(target, name);
+      if (this._hasProperty(target, name)) {
+        return {
+          "writable": true,
+          "enumerable": true,
+          "configurable": true,
+          "get": this.get.bind(this, target, name),
+          "set": this.set.bind(this, target, name),
+        };
+      }
+
+      if (this._hasMethod(target, name)) {
+        return {
+          "value": (...args) => {
+            //call("Call", { name, argc, argv, exception });
+          },
+          "writable": true,
+          "enumerable": true,
+          "configurable": true,
+        };
+      }
+
+      return undefined;
+    },
+    // defineProperty -> target
+    has: function(target, name) {
+      return this._hasProperty(target, name) || this._hasMethod(target, name);
+    },
+    get: function(target, name, receiver) {
+      dump(`Calling GetProperty for ${name.toSource()}\n`);
+      let prop = call("GetProperty", { name });
+      if (!prop || PP_VarType[prop.type] == PP_VarType.PP_VARTYPE_UNDEFINED) {
+        // FIXME Need to get the exception!
+        return undefined;
+      }
+      return prop;
+    },
+    set: function(target, name, value, receiver) {
+      call("SetProperty", { name, value });
+      // FIXME Need to get the exception!
+      return true;
+    },
+    deleteProperty: function(target, name) {
+      call("RemoveProperty", { name });
+      // FIXME Need to get the exception!
+      return true;
+    },
+    enumerate: function(target) {
+      let keys = this.ownKeys(target);
+      return keys[Symbol.iterator];
+    },
+    ownKeys: function(target) {
+      let result = call("GetAllPropertyNames");
+      dump(result.toSource() + "\n");
+      dump(typeof result.properties + "\n");
+      return result.properties;
+    },
+    apply: function(target, thisArg, args) {
+    },
+    construct: function(target, args) {
+      //call("Construct", { argc, argv, exception });
+    },
+
+    _hasProperty: function(target, name) {
+      return call("HasProperty", { name }) == 1 /* PP_Bool.PP_TRUE */;
+    },
+    _hasMethod: function(target, name) {
+      return call("HasMethod", { name }) == 1 /* PP_Bool.PP_TRUE */;
+    },
+  };
+
+  let metaData = {
+    objectClass,
+    objectData,
+  };
+
+  let clonedHandler = Cu.cloneInto(handler, containerWindow, { cloneFunctions: true });
+  let clonedMetaData = Cu.cloneInto(metaData, containerWindow, { cloneFunctions: true });
+  let target = Cu.createObjectIn(containerWindow);
+  target[Symbol.for("metaData")] = clonedMetaData;
+
+dump("IN CREATEOBJECT\n");
+  let proxy = new containerWindow.Proxy(target, clonedHandler);
+  jsInterfaceObjects.set(proxy, metaData);
+  let foo = mapValue(proxy.wrappedJSObject, instance);
+dump("CREATEDOBJECT: " + foo.toSource() + "\n");
+  return foo;
+});
+
+mm.addMessageListener("ppapiflash.js:isInstanceOf", ({ data: { objectClass }, objects: { object, instance } }) => {
+  let metaData = jsInterfaceObjects.get(object);
+  if (!metaData || metaData.objectClass != objectClass) {
+    return [false];
+  }
+  return [true, metaData.objectData];
+});
+
+mm.addMessageListener("ppapiflash.js:getProperty", ({ data: { name }, objects: { object, instance } }) => {
+  try {
+    return [mapValue(object[name], instance), { exception: null }];
+  } catch (e) {
+    return [mapValue(null, instance), { exception: mapValue(e, instance) }];
+  }
+});
+
+mm.addMessageListener("ppapiflash.js:log", ({ data }) => {
+  containerWindow.console.log(data);
+});
+
+mm.addMessageListener("ppapiflash.js:setInstancePrototype", ({ objects: { proto } }) => {
+  Object.setPrototypeOf(proto.wrappedJSObject, Object.getPrototypeOf(pluginElement.wrappedJSObject));
+  Object.setPrototypeOf(pluginElement.wrappedJSObject, proto.wrappedJSObject);
+});
+
+mm.addMessageListener("ppapi.js:isFullscreen", () => {
+  return containerWindow.document.fullscreenElement == pluginElement;
+});
+
+mm.addMessageListener("ppapi.js:setFullscreen", ({ data }) => {
+  if (data) {
+    pluginElement.requestFullscreen();
+  } else {
+    containerWindow.document.exitFullscreen();
+  }
+});
+
+mm.loadFrameScript("resource://ppapi.js/ppapi-instance.js", true);
--- a/browser/extensions/mortar/host/interpose.cc
+++ b/browser/extensions/mortar/host/interpose.cc
@ -0,0 +1,335 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "../ppapi/out/rpc.cc"
+#include <dlfcn.h>
+
+#define REAL_PLUGIN_PATH "/Applications/Google Chrome.app/Contents/Versions/42.0.2311.135/Google Chrome Framework.framework/Internet Plug-Ins/PepperFlash/PepperFlashPlayer.plugin/Contents/MacOS/PepperFlashPlayer"
+//#define REAL_PLUGIN_PATH "/usr/lib/pepperflashplugin-nonfree/libpepflashplayer.so"
+
+static PPB_GetInterface _real_PPB_GetInterface;
+
+const void* RealGetInterface(const char* interfaceName) {
+  if (!strcmp(interfaceName, "PPB_Flash_File_FileRef;2.0")) {
+    interfaceName = "PPB_Flash_File_FileRef;2";
+  } else if (!strcmp(interfaceName, "PPB_Flash_File_ModuleLocal;3.0")) {
+    interfaceName = "PPB_Flash_File_ModuleLocal;3";
+  }
+  return _real_PPB_GetInterface(interfaceName);
+}
+const void* GetInterfaceForRPC(const char* interfaceName) {
+  const void* interface = gInterfaces[interfaceName];
+  //printf("GetInterfaceForRPC %s\n", interfaceName);
+  if (!interface) {
+    printf("MISSING INTERFACE %s\n", interfaceName);
+  }
+  return interface;
+}
+
+void
+Fail(const char *reason, const char *data)
+{
+  fprintf(stdout, reason, data);
+  fflush(stdout);
+  exit(-1);
+}
+
+void Logging_PP_CompletionCallback(void* user_data, int32_t result)
+{
+  PP_CompletionCallback* _real_PP_CompletionCallback = static_cast<PP_CompletionCallback*>(user_data);
+  printf("callFromJSON: > {\"__callback\":\"PP_CompletionCallback\",\"__callbackStruct\":{\"func\":%lu,\"user_data\":%lu,\"flags\":%i},\"result\":%i}\n",
+         uintptr_t(_real_PP_CompletionCallback->func), uintptr_t(_real_PP_CompletionCallback->user_data), _real_PP_CompletionCallback->flags, result);
+  _real_PP_CompletionCallback->func(_real_PP_CompletionCallback->user_data, result);
+  printf("callFromJSON: < {\"__callback\":\"PP_CompletionCallback\",\"__callbackStruct\":{\"func\":%lu,\"user_data\":%lu,\"flags\":%i},\"result\":%i}\n",
+         uintptr_t(_real_PP_CompletionCallback->func), uintptr_t(_real_PP_CompletionCallback->user_data), _real_PP_CompletionCallback->flags, result);
+  delete _real_PP_CompletionCallback;
+}
+
+void Logging_PPB_Audio_Callback_1_0(void* sample_buffer,
+                                    uint32_t buffer_size_in_bytes,
+                                    void* user_data)
+{
+  Logging_PPB_Audio_Callback_1_0_holder* holder = static_cast<Logging_PPB_Audio_Callback_1_0_holder*>(user_data);
+  printf("callFromJSON: > {\"__callback\":\"PPB_Audio_Callback_1_0\",\"__callbackStruct\":{\"func\":%lu,\"sample_buffer\":%lu,\"buffer_size_in_bytes\":%i},\"user_data\":%lu}\n",
+         uintptr_t(holder->func), uintptr_t(sample_buffer), buffer_size_in_bytes, uintptr_t(holder->user_data));
+  holder->func(sample_buffer, buffer_size_in_bytes, holder->user_data);
+  printf("callFromJSON: < {\"__callback\":\"PPB_Audio_Callback_1_0\",\"__callbackStruct\":{\"func\":%lu,\"sample_buffer\":%lu,\"buffer_size_in_bytes\":%i},\"user_data\":%lu}\n",
+         uintptr_t(holder->func), uintptr_t(sample_buffer), buffer_size_in_bytes, uintptr_t(holder->user_data));
+}
+
+static void *_real_PepperFlash = nullptr;
+
+typedef int32_t (*PPP_InitializeBroker_Func)(PP_ConnectInstance_Func* connect_instance_func);
+typedef void (*PPP_ShutdownBroker_Func)(void);
+
+static PP_InitializeModule_Func _real_PPP_InitializeModule;
+static PP_GetInterface_Func _real_PPP_GetInterface;
+static PPP_InitializeBroker_Func _real_PPP_InitializeBroker;
+static PPP_ShutdownBroker_Func _real_PPP_ShutdownBroker;
+
+static void
+LoadRealPepperFlash()
+{
+  if (!_real_PepperFlash) {
+    _real_PepperFlash = dlopen(REAL_PLUGIN_PATH, RTLD_LAZY);
+    _real_PPP_InitializeModule = (PP_InitializeModule_Func)dlsym(_real_PepperFlash, "PPP_InitializeModule");
+    _real_PPP_GetInterface = (PP_GetInterface_Func)dlsym(_real_PepperFlash, "PPP_GetInterface");
+    _real_PPP_InitializeBroker = (PPP_InitializeBroker_Func)dlsym(_real_PepperFlash, "PPP_InitializeBroker");
+    _real_PPP_ShutdownBroker = (PPP_ShutdownBroker_Func)dlsym(_real_PepperFlash, "PPP_ShutdownBroker");
+    InitializeInterfaceList();
+  }
+}
+
+struct Logging_PPP_Class_Deprecated_holder;
+
+PP_Bool
+Logging_HasProperty(const void* object,
+                    PP_Var name,
+                    PP_Var* exception)
+{
+  uint32_t varNameLength;
+  const char* varName = ((PPB_Var_Deprecated_0_3*)RealGetInterface("PPB_Var(Deprecated);0.3"))->VarToUtf8(name, &varNameLength);
+  printf("Logging_HasProperty for ");
+  for (uint32_t i = 0; i < varNameLength; ++i) {
+    printf("%c", varName[i]);
+  }
+  printf("\n");
+  const Logging_PPP_Class_Deprecated_holder* holder = static_cast<const Logging_PPP_Class_Deprecated_holder*>(object);
+  PP_Bool result = holder->_real_PPP_Class_Deprecated->HasProperty(holder->object, name, exception);
+  printf("Logging_HasProperty for ");
+  for (uint32_t i = 0; i < varNameLength; ++i) {
+    printf("%c", varName[i]);
+  }
+  printf(" returns %s\n", result == PP_TRUE ? "true" : "false");
+  return result;
+}
+
+PP_Bool
+Logging_HasMethod(const void* object,
+                  PP_Var name,
+                  PP_Var* exception)
+{
+  uint32_t varNameLength;
+  const char* varName = ((PPB_Var_Deprecated_0_3*)RealGetInterface("PPB_Var(Deprecated);0.3"))->VarToUtf8(name, &varNameLength);
+  printf("Logging_HasMethod for ");
+  for (uint32_t i = 0; i < varNameLength; ++i) {
+    printf("%c", varName[i]);
+  }
+  printf("\n");
+  const Logging_PPP_Class_Deprecated_holder* holder = static_cast<const Logging_PPP_Class_Deprecated_holder*>(object);
+  PP_Bool result = holder->_real_PPP_Class_Deprecated->HasMethod(holder->object, name, exception);
+  printf("Logging_HasMethod for ");
+  for (uint32_t i = 0; i < varNameLength; ++i) {
+    printf("%c", varName[i]);
+  }
+  printf(" returns %s\n", result == PP_TRUE ? "true" : "false");
+  return result;
+}
+
+PP_Var
+Logging_GetProperty(const void* object,
+                    PP_Var name,
+                    PP_Var* exception)
+{
+  printf("Logging_GetProperty\n");
+  const Logging_PPP_Class_Deprecated_holder* holder = static_cast<const Logging_PPP_Class_Deprecated_holder*>(object);
+  return holder->_real_PPP_Class_Deprecated->GetProperty(holder->object, name, exception);
+}
+
+void
+Logging_GetAllPropertyNames(const void* object,
+                            uint32_t* property_count,
+                            PP_Var** properties,
+                            PP_Var* exception)
+{
+  printf("Logging_GetAllPropertyNames\n");
+  const Logging_PPP_Class_Deprecated_holder* holder = static_cast<const Logging_PPP_Class_Deprecated_holder*>(object);
+  holder->_real_PPP_Class_Deprecated->GetAllPropertyNames(holder->object, property_count, properties, exception);
+}
+
+void
+Logging_SetProperty(const void* object,
+                    PP_Var name,
+                    PP_Var value,
+                    PP_Var* exception)
+{
+  printf("Logging_SetProperty\n");
+  const Logging_PPP_Class_Deprecated_holder* holder = static_cast<const Logging_PPP_Class_Deprecated_holder*>(object);
+  holder->_real_PPP_Class_Deprecated->SetProperty(holder->object, name, value, exception);
+}
+
+void
+Logging_RemoveProperty(const void* object,
+                       PP_Var name,
+                       PP_Var* exception)
+{
+  printf("Logging_RemoveProperty\n");
+  const Logging_PPP_Class_Deprecated_holder* holder = static_cast<const Logging_PPP_Class_Deprecated_holder*>(object);
+  holder->_real_PPP_Class_Deprecated->RemoveProperty(holder->object, name, exception);
+}
+
+PP_Var
+Logging_Call(const void* object,
+             PP_Var method_name,
+             uint32_t argc,
+             const PP_Var argv[],
+             PP_Var* exception)
+{
+  printf("Logging_Call\n");
+  const Logging_PPP_Class_Deprecated_holder* holder = static_cast<const Logging_PPP_Class_Deprecated_holder*>(object);
+  return holder->_real_PPP_Class_Deprecated->Call(holder->object, method_name, argc, argv, exception);
+}
+
+PP_Var
+Logging_Construct(const void* object,
+                  uint32_t argc,
+                  const PP_Var argv[],
+                  PP_Var* exception)
+{
+  printf("Logging_Construct\n");
+  const Logging_PPP_Class_Deprecated_holder* holder = static_cast<const Logging_PPP_Class_Deprecated_holder*>(object);
+  return holder->_real_PPP_Class_Deprecated->Construct(holder->object, argc, argv, exception);
+}
+
+void
+Logging_Deallocate(const void* object)
+{
+  printf("Logging_Deallocate\n");
+  const Logging_PPP_Class_Deprecated_holder* holder = static_cast<const Logging_PPP_Class_Deprecated_holder*>(object);
+  holder->_real_PPP_Class_Deprecated->Deallocate(holder->object);
+  delete holder;
+}
+
+const PPP_Class_Deprecated _interpose_PPP_Class_Deprecated_1_0 = {
+  Logging_HasProperty,
+  Logging_HasMethod,
+  Logging_GetProperty,
+  Logging_GetAllPropertyNames,
+  Logging_SetProperty,
+  Logging_RemoveProperty,
+  Logging_Call,
+  Logging_Construct,
+  Logging_Deallocate,
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static PP_Bool
+Logging_HandleInputEvent(PP_Instance instance, PP_Resource input_event)
+{
+  const PPP_InputEvent_0_1* _real_PPP_InputEvent = static_cast<const PPP_InputEvent_0_1*>(_real_PPP_GetInterface("PPP_InputEvent;0.1"));
+  printf("callFromJSON: > {\"__interface\":\"PPP_InputEvent;0.1\",\"__member\":\"HandleInputEvent\",\"instance\":%i,\"input_event\":%i}\n", instance, input_event);
+  PP_Bool result = _real_PPP_InputEvent->HandleInputEvent(instance, input_event);
+  printf("callFromJSON: < \"%s\"\n", ToString_PP_Bool(result).c_str());
+  return result;
+}
+
+static const PPP_InputEvent_0_1 _interpose_PPP_InputEvent_0_1 = {
+  Logging_HandleInputEvent
+};
+
+static PP_Bool
+Logging_DidCreate(PP_Instance instance,
+                  uint32_t argc,
+                  const char* argn[],
+                  const char* argv[])
+{
+  const PPP_Instance_1_1* _real_PPP_Instance = static_cast<const PPP_Instance_1_1*>(_real_PPP_GetInterface("PPP_Instance;1.1"));
+  printf("callFromJSON: > {\"__interface\":\"PPP_Instance;1.1\",\"__member\":\"DidCreate\",\"instance\":%i,\"argc\":%i,\"argn\":[", instance, argc);
+  for (uint32_t i = 0; i < argc; ++i) {
+    if (i > 0) {
+      printf(",");
+    }
+    printf("\"%s\"", argn[i]);
+  }
+  printf("],\"argv\":[");
+  for (uint32_t i = 0; i < argc; ++i) {
+    if (i > 0) {
+      printf(",");
+    }
+    printf("\"%s\"", argv[i]);
+  }
+  printf("]}\n");
+  PP_Bool result = _real_PPP_Instance->DidCreate(instance, argc, argn, argv);
+  printf("callFromJSON: < \"%s\"\n", ToString_PP_Bool(result).c_str());
+  return result;
+}
+static void
+Logging_DidDestroy(PP_Instance instance)
+{
+  const PPP_Instance_1_1* _real_PPP_Instance = static_cast<const PPP_Instance_1_1*>(_real_PPP_GetInterface("PPP_Instance;1.1"));
+  printf("callFromJSON: > {\"__interface\":\"PPP_Instance;1.1\",\"__member\":\"DidDestroy\",\"instance\":%i}\n", instance);
+  _real_PPP_Instance->DidDestroy(instance);
+}
+static void
+Logging_DidChangeView(PP_Instance instance, PP_Resource view)
+{
+  const PPP_Instance_1_1* _real_PPP_Instance = static_cast<const PPP_Instance_1_1*>(_real_PPP_GetInterface("PPP_Instance;1.1"));
+  printf("callFromJSON: > {\"__interface\":\"PPP_Instance;1.1\",\"__member\":\"DidChangeView\",\"instance\":%i,\"view\":%i}\n", instance, view);
+  _real_PPP_Instance->DidChangeView(instance, view);
+}
+static void
+Logging_DidChangeFocus(PP_Instance instance, PP_Bool has_focus)
+{
+  const PPP_Instance_1_1* _real_PPP_Instance = static_cast<const PPP_Instance_1_1*>(_real_PPP_GetInterface("PPP_Instance;1.1"));
+  printf("callFromJSON: > {\"__interface\":\"PPP_Instance;1.1\",\"__member\":\"DidChangeFocus\",\"instance\":%i,\"has_focus\":%s}\n", instance, has_focus ? "PP_TRUE" : "PP_FALSE");
+  _real_PPP_Instance->DidChangeFocus(instance, has_focus);
+}
+static PP_Bool
+Logging_HandleDocumentLoad(PP_Instance instance, PP_Resource url_loader)
+{
+  const PPP_Instance_1_1* _real_PPP_Instance = static_cast<const PPP_Instance_1_1*>(_real_PPP_GetInterface("PPP_Instance;1.1"));
+  printf("callFromJSON: > {\"__interface\":\"PPP_Instance;1.1\",\"__member\":\"HandleDocumentLoad\",\"instance\":%i,\"url_loader\":%i}\n", instance, url_loader);
+  PP_Bool result = _real_PPP_Instance->HandleDocumentLoad(instance, url_loader);
+  printf("callFromJSON: < \"%s\"\n", ToString_PP_Bool(result).c_str());
+  return result;
+}
+
+static const PPP_Instance_1_1 _interpose_PPP_Instance_1_1 = {
+  Logging_DidCreate,
+  Logging_DidDestroy,
+  Logging_DidChangeView,
+  Logging_DidChangeFocus,
+  Logging_HandleDocumentLoad
+};
+
+const void *
+PPP_GetInterface(const char *interface_name)
+{
+//printf("PPP_GetInterface %s\n", interface_name);
+  LoadRealPepperFlash();
+  if (!strcmp(interface_name, "PPP_InputEvent;0.1")) {
+    return &_interpose_PPP_InputEvent_0_1;
+  }
+  if (!strcmp(interface_name, "PPP_Instance;1.1")) {
+    return &_interpose_PPP_Instance_1_1;
+  }
+  return _real_PPP_GetInterface(interface_name);
+}
+
+int32_t
+PPP_InitializeModule(PP_Module module, PPB_GetInterface get_browser_interface)
+{
+  LoadRealPepperFlash();
+  _real_PPB_GetInterface = get_browser_interface;
+  return _real_PPP_InitializeModule(module, GetInterfaceForRPC);
+}
+
+int32_t
+PPP_InitializeBroker(PP_ConnectInstance_Func *connect_instance_func)
+{
+  return _real_PPP_InitializeBroker(connect_instance_func);
+}
+
+void
+PPP_ShutdownBroker()
+{
+  return _real_PPP_ShutdownBroker();
+}
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
--- a/browser/extensions/mortar/host/pdf/bootstrap.js
+++ b/browser/extensions/mortar/host/pdf/bootstrap.js
@ -0,0 +1,69 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+Cu.import("resource://gre/modules/Services.jsm");
+
+function sandboxScript(sandbox)
+{
+  dump("sandboxScript " + sandbox.pluginElement + "\n");
+  Components.classes["@mozilla.org/moz/jssubscript-loader;1"].getService(Components.interfaces.mozIJSSubScriptLoader).loadSubScript("resource://ppapipdf.js/ppapi-content-sandbox.js", sandbox);
+}
+
+let plugins;
+function startup(data) {
+  dump(">>>STARTED!!!\n");
+
+  let root = data.installPath.parent.parent;
+  let rpclib = root.clone();
+  let pluginlib = root.clone();
+  let os = Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULRuntime).OS;
+  if (os == "Darwin") {
+    rpclib.appendRelativePath("ppapi/out/rpc.dylib");
+    pluginlib.appendRelativePath("plugin/libpepperpdfium.dylib");
+  } else if (os == "Linux") {
+    rpclib.appendRelativePath("ppapi/out/rpc.so");
+    pluginlib.appendRelativePath("plugin/libpepperpdfium.so");
+  } else if (os == "WINNT") {
+    rpclib.appendRelativePath("ppapi\\out\\rpc.dll");
+    pluginlib.appendRelativePath("plugin\\pepperpdfium.dll");
+  } else {
+    throw("Don't know the path to the libraries for this OS!");
+  }
+  rpclib = rpclib.path;
+  pluginlib = pluginlib.path;
+
+  let pluginHost = Cc["@mozilla.org/plugin/host;1"].getService(Ci.nsIPluginHost);
+  let plugin = pluginHost.registerFakePlugin({
+    handlerURI: "chrome://ppapipdf.js/content/viewer.html",
+    mimeEntries: [
+      { type: "application/pdf", extension: "pdf" },
+      { type: "application/vnd.adobe.pdf", extension: "pdf" },
+      { type: "application/vnd.adobe.pdfxml", extension: "pdfxml" },
+      { type: "application/vnd.adobe.x-mars", extension: "mars" },
+      { type: "application/vnd.adobe.xdp+xml", extension: "xdp" },
+      { type: "application/vnd.adobe.xfdf", extension: "xfdf" },
+      { type: "application/vnd.adobe.xfd+xml", extension: "xfd" },
+      { type: "application/vnd.fdf", extension: "fdf" },
+    ],
+    name: "PPAPI PDF plugin",
+    niceName: "PPAPI PDF plugin",
+    version: "1.0",
+    sandboxScript : `(${sandboxScript.toSource()})(this);`,
+    ppapiProcessArgs: [ rpclib, pluginlib ],
+  });
+  plugin.enabledState = Ci.nsIPluginTag.STATE_ENABLED;
+
+  let rng = Cc["@mozilla.org/security/random-generator;1"].createInstance(Ci.nsIRandomGenerator);
+  Services.ppmm.addMessageListener("ppapi.js:generateRandomBytes", ({ data }) => {
+    return rng.generateRandomBytes(data);
+  });
+
+  dump("<<<STARTED!!!\n");
+}
+
+function shutdown() {
+  dump("SHUTDOWN!!!\n");
+}
--- a/browser/extensions/mortar/host/pdf/chrome.manifest
+++ b/browser/extensions/mortar/host/pdf/chrome.manifest
@ -0,0 +1,3 @@
+resource ppapipdf.js .
+content ppapipdf.js chrome/
+resource ppapi.js ../common/
--- a/browser/extensions/mortar/host/pdf/chrome/js/l20n.js
+++ b/browser/extensions/mortar/host/pdf/chrome/js/l20n.js
--- a/browser/extensions/mortar/host/pdf/chrome/js/polyfill.js
+++ b/browser/extensions/mortar/host/pdf/chrome/js/polyfill.js
@ -0,0 +1,239 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+'use strict';
+
+class PolyfillDropdown {
+  constructor(select) {
+    this._select = select;
+    this._currentValue = select.value;
+
+    this._visible = false;
+    this._scrollbarWidth = 0;
+
+    this._options = [];
+    this._onChangedHandler = [];
+
+    this._polyfill = document.createElement('div');
+    this._polyfill.classList.add('polyfillDropdown');
+    this._polyfill.classList.add('hidden');
+
+    for (let elem of this._select.getElementsByTagName('option')) {
+      this._options.push(elem.value);
+
+      if (!elem.hidden) {
+        let option = document.createElement('div');
+        option.classList.add('polyfillOption');
+        option.tabIndex = -1;
+        option.dataset.value = elem.value;
+        document.l10n.setAttributes(option,
+          elem.dataset.l10nId, JSON.parse(elem.dataset.l10nArgs || '{}'));
+        option.addEventListener('click',
+          this._onOptionClicked.bind(this, elem.value));
+        this._polyfill.appendChild(option);
+      }
+    }
+
+    document.body.appendChild(this._polyfill);
+
+    let dropdownStyle = getComputedStyle(this._polyfill);
+    this._defaultDropdownBorderWidth =
+      parseInt(dropdownStyle.getPropertyValue('border-left-width'), 10) +
+      parseInt(dropdownStyle.getPropertyValue('border-right-width'), 10);
+
+    let optionStyle = getComputedStyle(this._polyfill.childNodes[0]);
+    this._defaultOptionPaddingRight =
+      parseInt(optionStyle.getPropertyValue('padding-right'), 10);
+
+    this._select.addEventListener('click', this);
+    this._select.addEventListener('change', this);
+    this._select.addEventListener('blur', this);
+    this._select.addEventListener('keydown', this);
+  }
+
+  get value() {
+    return this._select.value;
+  }
+
+  set value(value) {
+    this._currentValue = value;
+    this._select.value = value;
+  }
+
+  _show() {
+    if (this._visible) {
+      return;
+    }
+    this._visible = true;
+    this._updateOptionStatus();
+    this._polyfill.classList.remove('hidden');
+    this._resize();
+
+    window.addEventListener('resize', this);
+  }
+
+  _hide() {
+    if (!this._visible) {
+      return;
+    }
+    window.removeEventListener('resize', this);
+    this._polyfill.classList.add('hidden');
+    this._visible = false;
+
+    if (this._select.value !== this._currentValue) {
+      this._triggerChangeEvent();
+    }
+  }
+
+  _updateOptionStatus() {
+    let currentValue = this._select.value;
+    for (let elem of this._polyfill.childNodes) {
+      elem.classList.toggle('toggled', elem.dataset.value === currentValue);
+    };
+  }
+
+  _resize() {
+    let rect = this._select.getBoundingClientRect();
+    this._polyfill.style.left = rect.left + 'px';
+    this._polyfill.style.top = rect.bottom + 'px';
+
+    let scrollbarWidth = this._polyfill.offsetWidth -
+      this._polyfill.clientWidth - this._defaultDropdownBorderWidth;
+
+    if (scrollbarWidth != this._scrollbarWidth) {
+      this._scrollbarWidth = scrollbarWidth;
+      Array.from(this._polyfill.getElementsByClassName('polyfillOption'))
+        .forEach(option => {
+          if (scrollbarWidth > 0) {
+            option.style.paddingRight =
+              (scrollbarWidth + this._defaultOptionPaddingRight) + 'px';
+          } else {
+            option.style.paddingRight = '';
+          }
+        });
+    }
+  }
+
+  _onOptionClicked(value) {
+    this._select.value = value;
+    this._hide();
+  }
+
+  _triggerChangeEvent() {
+    this._currentValue = this._select.value;
+
+    let event = {
+      type: 'change',
+      target: this._select
+    };
+
+    this._onChangedHandler.forEach(handler => {
+      if (typeof handler === 'function') {
+        handler.call(this._select, event);
+      } else if (typeof handler === 'object' &&
+                 typeof handler.handleEvent === 'function') {
+        handler.handleEvent(event);
+      }
+    });
+  }
+
+  addEventListener(type, listener, useCapture) {
+    if (type == 'change') {
+      this._onChangedHandler.push(listener);
+    } else {
+      this._select.addEventListener(type, listener, useCapture);
+    }
+  }
+
+  querySelectorAll(selectors) {
+    return this._select.querySelectorAll(selectors);
+  }
+
+  handleEvent(evt) {
+    let handled = false;
+
+    switch(evt.type) {
+      case 'click':
+        if (this._visible) {
+          this._hide();
+        } else {
+          this._show();
+        }
+        handled = true;
+        break;
+      case 'change':
+        if (this._visible) {
+          this._updateOptionStatus();
+        } else if (this._select.value !== this._currentValue) {
+          this._triggerChangeEvent();
+        }
+        break;
+      case 'blur':
+        setTimeout(() => {
+          if (!this._polyfill.contains(document.activeElement)) {
+            this._hide();
+          }
+        });
+        break;
+      case 'resize':
+        this._resize();
+        break;
+      case 'keydown':
+        let isMac = navigator.platform.startsWith('Mac');
+
+        if (this._visible) {
+          let index;
+
+          switch(evt.keyCode) {
+            case KeyEvent.DOM_VK_ESCAPE:
+            case KeyEvent.DOM_VK_RETURN:
+              this._hide();
+              handled = true;
+              break;
+            case KeyEvent.DOM_VK_DOWN:
+              if (isMac) {
+                index = this._options.indexOf(this._select.value);
+                if (index < this._options.length - 1) {
+                  this._select.value = this._options[index + 1];
+                  this._updateOptionStatus();
+                }
+                handled = true;
+              }
+              break;
+            case KeyEvent.DOM_VK_UP:
+              if (isMac) {
+                index = this._options.indexOf(this._select.value);
+                if (index > 0) {
+                  this._select.value = this._options[index - 1];
+                  this._updateOptionStatus();
+                }
+                handled = true;
+              }
+              break;
+          }
+        } else if (document.activeElement == this._select) {
+          switch(evt.keyCode) {
+            case KeyEvent.DOM_VK_SPACE:
+              this._show();
+              handled = true;
+              break;
+            case KeyEvent.DOM_VK_DOWN:
+            case KeyEvent.DOM_VK_UP:
+              if (isMac) {
+                this._show();
+                handled = true;
+              }
+              break;
+          }
+        }
+
+        break;
+    }
+
+    if (handled) {
+      evt.stopPropagation();
+      evt.preventDefault();
+    }
+  }
+}
--- a/browser/extensions/mortar/host/pdf/chrome/js/toolbar.js
+++ b/browser/extensions/mortar/host/pdf/chrome/js/toolbar.js
@ -0,0 +1,279 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+'use strict';
+
+class ProgressBar {
+  constructor() {
+    this._container = document.getElementById('loadingBar');
+    this._percentage = this._container.querySelector('.progress');
+  }
+
+  show() {
+    this._container.classList.remove('hidden');
+  }
+
+  hide(waitForTransition) {
+    let percentage = this._percentage;
+    let doHide = () => {
+      this._container.classList.add('hidden');
+      percentage.style.width = '';
+    };
+    if (!waitForTransition) {
+      doHide();
+    } else {
+      percentage.addEventListener('transitionend', function handler() {
+        percentage.removeEventListener('transitionend', handler);
+        doHide();
+      });
+    }
+  }
+
+  setProgress(progress) {
+    if (isNaN(progress) || progress < 0 || progress > 100) {
+      this._percentage.classList.add('indeterminate');
+      return;
+    }
+    this._percentage.classList.remove('indeterminate');
+    this._percentage.style.width = Math.round(progress) + '%';
+  }
+}
+
+class SecondaryToolbar {
+  constructor() {
+    this._container = document.getElementById('secondaryToolbar');
+    this._toggleButton = document.getElementById('secondaryToolbarToggle');
+  }
+
+  toggle() {
+    this._toggleButton.classList.toggle('toggled');
+    this._container.classList.toggle('hidden');
+    if (this._container.classList.contains('hidden')) {
+      window.removeEventListener('click', this);
+    } else {
+      window.addEventListener('click', this);
+    }
+  }
+
+  handleEvent(evt) {
+    // Hide the secondary toolbar automatically when a user is not clicking the
+    // toggle button. (The handler of the toggle button will take care of hiding
+    // it instead.)
+    if (evt.target != this._toggleButton) {
+      this.toggle();
+    }
+  }
+}
+
+class ScaleSelect {
+  constructor(viewport) {
+    this._viewport = viewport;
+
+    this._select = new PolyfillDropdown(document.getElementById('scaleSelect'));
+    this._select.addEventListener('change', this);
+
+    this._customScaleOption = document.getElementById('customScaleOption');
+    this._customScale = 0;
+
+    this._predefinedOption =
+      Array.from(this._select.querySelectorAll('option:not([hidden])'))
+        .map(elem => elem.value);
+  }
+
+  setScale(scale) {
+    if (this._predefinedOption.includes(String(scale))) {
+      this._customScale = 0;
+      this._select.value = scale;
+    } else if (!isNaN(scale)) {
+      let customScale = Math.round(scale * 10000) / 100;
+      if (customScale != this._customScale) {
+        this._customScale = customScale;
+        document.l10n.formatValue('page_scale_percent', {scale: customScale})
+          .then(result => {
+            this._select.value = '';
+            this._customScaleOption.textContent = result;
+            this._select.value = 'custom';
+          });
+      }
+    }
+  }
+
+  handleEvent(evt) {
+    switch(evt.type) {
+      case 'change':
+        let scale = this._select.value;
+        if (!isNaN(scale)) {
+          // "viewport.fitting" will be set to "none" automatically once
+          // assigning a new "zoom".
+          this._viewport.zoom = scale;
+        } else if (scale != 'custom') {
+          this._viewport.fitting = scale;
+        }
+        break;
+    }
+  }
+}
+
+class Toolbar {
+  constructor(viewport) {
+    let elements = [
+      'zoomIn', 'zoomOut', 'previous', 'next', 'pageNumber', 'numPages',
+      'firstPage', 'lastPage', 'pageRotateCw', 'pageRotateCcw'
+    ];
+
+    this.ZOOM_FACTORS = [
+      0.25, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.3, 1.5, 1.7, 1.9, 2.1,
+      2.4, 2.7, 3, 3.3, 3.7, 4.1, 4.6, 5.1, 5.7, 6.3, 7, 7.7, 8.5, 9.4, 10
+    ];
+
+    this._viewport = viewport;
+    this._secondaryToolbar = new SecondaryToolbar();
+    this._loadingBar = new ProgressBar();
+    this._scaleSelect = new ScaleSelect(viewport);
+
+    this._elements = {};
+    elements.forEach(id => {
+      this._elements[id] = document.getElementById(id);
+    });
+
+    let toolbarButtons =
+      document.querySelectorAll('.toolbarButton, .secondaryToolbarButton');
+    for (let button of toolbarButtons) {
+      button.addEventListener('click', this);
+    }
+
+    this._elements.pageNumber.addEventListener('focus', this);
+    this._elements.pageNumber.addEventListener('change', this);
+
+    this._viewport.onDimensionChanged = this._updateDimensions.bind(this);
+    this._viewport.onProgressChanged = this._updateProgress.bind(this);
+    this._viewport.onZoomChanged = this._updateToolbar.bind(this);
+    this._viewport.onPageChanged = this._updateToolbar.bind(this);
+
+    this._updateToolbar();
+  }
+
+  _zoomIn() {
+    let zoom = this._viewport.zoom;
+    let newZoom = this.ZOOM_FACTORS.find(factor => (factor - zoom) > 0.049);
+    if (!newZoom) {
+      newZoom = this.ZOOM_FACTORS[this.ZOOM_FACTORS.length - 1];
+    }
+    this._viewport.zoom = newZoom;
+  }
+
+  _zoomOut() {
+    let reversedFactors = Array.from(this.ZOOM_FACTORS);
+    reversedFactors.reverse();
+    let zoom = this._viewport.zoom;
+    let newZoom = reversedFactors.find(factor => (zoom - factor) > 0.049);
+    if (!newZoom) {
+      newZoom = this.ZOOM_FACTORS[0];
+    }
+    this._viewport.zoom = newZoom;
+  }
+
+  _buttonClicked(id) {
+    switch(id) {
+      case 'firstPage':
+        this._viewport.page = 0;
+        break;
+      case 'lastPage':
+        this._viewport.page = this._viewport.pageCount - 1;
+        break;
+      case 'previous':
+        this._viewport.page--;
+        break;
+      case 'next':
+        this._viewport.page++;
+        break;
+      case 'zoomIn':
+        this._zoomIn();
+        break;
+      case 'zoomOut':
+        this._zoomOut();
+        break;
+      case 'pageRotateCw':
+        this._viewport.rotateClockwise();
+        break;
+      case 'pageRotateCcw':
+        this._viewport.rotateCounterClockwise();
+        break;
+      case 'secondaryToolbarToggle':
+        this._secondaryToolbar.toggle();
+        break;
+    }
+  }
+
+  _pageNumberChanged() {
+    let newPage = parseFloat(this._elements.pageNumber.value);
+    if (!Number.isInteger(newPage) ||
+        newPage < 1 || newPage > this._viewport.pageCount) {
+      this._elements.pageNumber.value = this._viewport.page + 1;
+      return;
+    }
+    this._elements.pageNumber.value = newPage;
+    this._viewport.page = newPage - 1;
+  }
+
+  _updateDimensions() {
+    let pageCount = this._viewport.pageCount;
+    document.l10n.formatValue('page_of', { pageCount })
+      .then(page_of => this._elements.numPages.textContent = page_of);
+    this._elements.pageNumber.max = pageCount;
+    this._updateToolbar();
+  }
+
+  _updateToolbar() {
+    let page = this._viewport.page + 1;
+    let pageCount = this._viewport.pageCount;
+
+    this._elements.pageNumber.disabled =
+      this._elements.pageRotateCw.disabled =
+      this._elements.pageRotateCcw.disabled = (pageCount == 0);
+
+    this._elements.pageNumber.value = pageCount ? page : '';
+    this._elements.previous.disabled =
+      this._elements.firstPage.disabled = (!pageCount || page == 1);
+    this._elements.next.disabled =
+      this._elements.lastPage.disabled = (!pageCount || page == pageCount);
+
+    let zoom = this._viewport.zoom;
+    this._elements.zoomIn.disabled =
+      (zoom >= this.ZOOM_FACTORS[this.ZOOM_FACTORS.length - 1]);
+    this._elements.zoomOut.disabled = (zoom <= this.ZOOM_FACTORS[0]);
+
+    let fitting = this._viewport.fitting;
+    this._scaleSelect.setScale(fitting == 'none' ? zoom : fitting);
+  }
+
+  _updateProgress(progress) {
+    this._loadingBar.show();
+    this._loadingBar.setProgress(progress);
+
+    if (progress == 100) {
+      this._loadingBar.hide(true);
+    }
+  }
+
+  handleEvent(evt) {
+    let target = evt.target;
+
+    switch(evt.type) {
+      case 'change':
+        if (target === this._elements.pageNumber) {
+          this._pageNumberChanged();
+        }
+        break;
+      case 'focus':
+        if (target === this._elements.pageNumber) {
+          target.select();
+        }
+        break;
+      case 'click':
+        this._buttonClicked(target.id);
+        break;
+    }
+  }
+}
--- a/browser/extensions/mortar/host/pdf/chrome/js/viewer.js
+++ b/browser/extensions/mortar/host/pdf/chrome/js/viewer.js
@ -0,0 +1,27 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+'use strict';
+
+window.addEventListener('DOMContentLoaded', function() {
+  let viewport = new Viewport();
+  let toolbar = new Toolbar(viewport);
+
+  // Expose the custom viewport object to runtime
+  window.createCustomViewport = function(actionHandler) {
+    viewport.registerActionHandler(actionHandler);
+
+    return {
+      addView: viewport.addView.bind(viewport),
+      clearView: viewport.clearView.bind(viewport),
+      getBoundingClientRect: viewport.getBoundingClientRect.bind(viewport),
+      is: viewport.is.bind(viewport),
+      bindUIEvent: viewport.bindUIEvent.bind(viewport),
+      unbindUIEvent: viewport.unbindUIEvent.bind(viewport),
+      setCursor: viewport.setCursor.bind(viewport),
+      getScrollOffset: viewport.getScrollOffset.bind(viewport),
+      notify: viewport.notify.bind(viewport)
+    };
+  };
+});
--- a/browser/extensions/mortar/host/pdf/chrome/js/viewport.js
+++ b/browser/extensions/mortar/host/pdf/chrome/js/viewport.js
@ -0,0 +1,501 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+'use strict';
+
+class Viewport {
+  constructor() {
+    this._canvasContainer = document.getElementById('canvasContainer');
+    this._viewportController = document.getElementById('viewportController');
+    this._sizer = document.getElementById('sizer');
+
+    this._scrollbarWidth = this._getScrollbarWidth();
+    this._hasVisibleScrollbars = {
+      horizontal: false,
+      vertical: false
+    };
+
+    this._page = 0;
+    this._zoom = 1;
+    this._fitting = 'auto';
+
+    // Caches the next position set during a series of actions and will be set
+    // to scrollbar's position until calling "_refresh".
+    this._nextPosition = null;
+
+    // Indicates the last position that runtime knows. Will update runtime only
+    // if "scroll" event gives us a different value.
+    this._runtimePosition = this.getScrollOffset();
+
+    // Similar to above. Will notify runtime only if "_notifyRuntimeOfResized()"
+    // gets a different value.
+    this._runtimeSize = this.getBoundingClientRect();
+    this._runtimeOnResizedListener = [];
+
+    this.onProgressChanged = null;
+    this.onZoomChanged = null;
+    this.onDimensionChanged = null;
+    this.onPageChanged = null;
+
+    this._viewportController.addEventListener('scroll', this);
+    window.addEventListener('resize', this);
+  }
+
+  get zoom() {
+    return this._zoom;
+  }
+
+  set zoom(newZoom) {
+    newZoom = parseFloat(newZoom);
+    if (!isNaN(newZoom) &&
+        (newZoom != this._zoom || this._fitting != 'none')) {
+      this._fitting = 'none';
+      this._setZoom(newZoom);
+      this._refresh();
+    }
+  }
+
+  get fitting() {
+    return this._fitting;
+  }
+
+  set fitting(newFitting) {
+    let VALID_VALUE = ['none', 'auto', 'page-actual', 'page-width', 'page-fit'];
+    if (!VALID_VALUE.includes(newFitting)) {
+      return;
+    }
+
+    if (newFitting != this._fitting) {
+      this._fitting = newFitting;
+      this._setZoom(this._computeFittingZoom());
+      this._refresh();
+    }
+  }
+
+  get pageCount() {
+    if (!this._pageDimensions) {
+      return 0;
+    }
+    return this._pageDimensions.length;
+  }
+
+  get page() {
+    return this._page;
+  }
+
+  set page(newPage) {
+    newPage = parseFloat(newPage);
+
+    let pageCount = this.pageCount;
+    if (!pageCount || !Number.isInteger(newPage)) {
+      return;
+    }
+
+    newPage = Math.max(0, Math.min(pageCount - 1, newPage));
+    this._setPage(newPage);
+    this._refresh();
+  }
+
+  _getScrollbarWidth() {
+    var div = document.createElement('div');
+    div.style.visibility = 'hidden';
+    div.style.overflow = 'scroll';
+    div.style.width = '50px';
+    div.style.height = '50px';
+    div.style.position = 'absolute';
+    document.body.appendChild(div);
+    var result = div.offsetWidth - div.clientWidth;
+    div.remove();
+    return result;
+  }
+
+  _documentHasVisibleScrollbars(zoom) {
+    let zoomedDimensions = this._getZoomedDocumentDimensions(zoom);
+    if (!zoomedDimensions || !this._scrollbarWidth) {
+      return {
+        horizontal: false,
+        vertical: false
+      };
+    }
+
+    let outerRect = this._viewportController.getBoundingClientRect();
+    if (zoomedDimensions.width > outerRect.width) {
+      zoomedDimensions.height += this._scrollbarWidth;
+    } else if (zoomedDimensions.height > outerRect.height) {
+      zoomedDimensions.width += this._scrollbarWidth;
+    }
+
+    return {
+      horizontal: zoomedDimensions.width > outerRect.width,
+      vertical: zoomedDimensions.height > outerRect.height
+    };
+  }
+
+  _updateProgress(progress) {
+    if (typeof this.onProgressChanged === 'function') {
+      this.onProgressChanged(progress);
+    }
+  }
+
+  _setDocumentDimensions(documentDimensions) {
+    this._documentDimensions = documentDimensions;
+    this._pageDimensions = documentDimensions.pageDimensions;
+    this._setZoom(this._computeFittingZoom());
+    this._setPage(this._page);
+    if (typeof this.onDimensionChanged === 'function') {
+      this.onDimensionChanged();
+    }
+    this._refresh();
+  }
+
+  _computeFittingZoom() {
+    let newZoom = this._zoom;
+    let fitting = this._fitting;
+
+    if (fitting == 'none') {
+      return newZoom;
+    }
+
+    let FITTING_PADDING = 40;
+    let MAX_AUTO_ZOOM = 1.25;
+
+    let page = this._pageDimensions[this._page];
+    let viewportRect = this.getBoundingClientRect();
+
+    let pageWidthZoom = (viewportRect.width - FITTING_PADDING) / page.width;
+    let pageHeightZoom = viewportRect.height / page.height;
+
+    switch (fitting) {
+      case 'auto':
+        let isLandscape = (page.width > page.height);
+        // For pages in landscape mode, fit the page height to the viewer
+        // *unless* the page would thus become too wide to fit horizontally.
+        let horizontalZoom = isLandscape ?
+          Math.min(pageWidthZoom, pageHeightZoom) : pageWidthZoom;
+        newZoom = Math.min(MAX_AUTO_ZOOM, horizontalZoom);
+        break;
+      case 'page-actual':
+        newZoom = 1;
+        break;
+      case 'page-width':
+        newZoom = pageWidthZoom;
+        break;
+      case 'page-fit':
+        newZoom = Math.min(pageWidthZoom, pageHeightZoom);
+        break;
+    }
+
+    return newZoom;
+  }
+
+  _getMostVisiblePage() {
+    let firstVisiblePage = 0;
+
+    let pageCount = this.pageCount;
+    if (!pageCount) {
+      return firstVisiblePage;
+    }
+
+    let position = this.getScrollOffset();
+
+    let min = 0;
+    let max = pageCount - 1;
+    let y = position.y / this._zoom;
+
+    while (max >= min) {
+      let page = Math.floor(min + ((max - min) / 2));
+      // There might be a gap between the pages, in which case use the bottom
+      // of the previous page as the top for finding the page.
+      let top = 0;
+      if (page > 0) {
+        top = this._pageDimensions[page - 1].y +
+              this._pageDimensions[page - 1].height;
+      }
+      let bottom = this._pageDimensions[page].y +
+                   this._pageDimensions[page].height;
+
+      if (top <= y && bottom > y) {
+        firstVisiblePage = page;
+        break;
+      } else if (top > y) {
+        max = page - 1;
+      } else {
+        min = page + 1;
+      }
+    }
+
+    if (firstVisiblePage == pageCount - 1) {
+      return firstVisiblePage;
+    }
+
+    let rect = this.getBoundingClientRect();
+    let viewportRect = {
+      x: position.x / this._zoom,
+      y: position.y / this._zoom,
+      width: rect.width / this._zoom,
+      height: rect.height / this._zoom
+    };
+
+    let getVisibleHeightRatio = rect => {
+      let intersectionHeight =
+        Math.min(rect.y + rect.height, viewportRect.y + viewportRect.height) -
+        Math.max(rect.y, viewportRect.y);
+      return Math.max(0, intersectionHeight) / rect.height;
+    };
+
+    let firstVisiblePageVisibility =
+      getVisibleHeightRatio(this._pageDimensions[firstVisiblePage]);
+    let nextPageVisibility =
+      getVisibleHeightRatio(this._pageDimensions[firstVisiblePage + 1]);
+
+    if (nextPageVisibility > firstVisiblePageVisibility) {
+      return firstVisiblePage + 1;
+    }
+
+    return firstVisiblePage;
+  }
+
+  _getZoomedDocumentDimensions(zoom) {
+    if (!this._documentDimensions) {
+      return null;
+    }
+    return {
+      width: Math.round(this._documentDimensions.width * zoom),
+      height: Math.round(this._documentDimensions.height * zoom)
+    };
+  }
+
+  _setPosition(x, y) {
+    this._nextPosition = {x, y};
+  }
+
+  _setZoom(newZoom) {
+    let currentPos = this._nextPosition || this.getScrollOffset();
+    currentPos.x /= this._zoom;
+    currentPos.y /= this._zoom;
+    this._zoom = newZoom;
+    this._contentSizeChanged();
+    this._setPosition(
+      currentPos.x * newZoom,
+      currentPos.y * newZoom
+    );
+    if (typeof this.onZoomChanged === 'function') {
+      this.onZoomChanged(this._zoom);
+    }
+  }
+
+  _setPage(newPage) {
+    if (newPage < 0 || newPage >= this.pageCount) {
+      return;
+    }
+    this._setPosition(
+      this._pageDimensions[newPage].x * this._zoom,
+      this._pageDimensions[newPage].y * this._zoom
+    );
+  }
+
+  _updateCanvasSize() {
+    let hasScrollbars = this._documentHasVisibleScrollbars(this._zoom);
+    if (hasScrollbars.horizontal == this._hasVisibleScrollbars.horizontal &&
+        hasScrollbars.vertical == this._hasVisibleScrollbars.vertical) {
+      return;
+    }
+    this._hasVisibleScrollbars = hasScrollbars;
+    this._canvasContainer.style.bottom =
+      hasScrollbars.horizontal ? this._scrollbarWidth + 'px' : 0;
+    this._canvasContainer.style.right =
+      hasScrollbars.vertical ? this._scrollbarWidth + 'px' : 0;
+    this._notifyRuntimeOfResized();
+  }
+
+  _contentSizeChanged() {
+    let zoomedDimensions = this._getZoomedDocumentDimensions(this._zoom);
+    if (zoomedDimensions) {
+      this._sizer.style.width = zoomedDimensions.width + 'px';
+      this._sizer.style.height = zoomedDimensions.height + 'px';
+      this._updateCanvasSize();
+    }
+  }
+
+  _resize() {
+    let newZoom = this._computeFittingZoom();
+    if (newZoom != this._zoom) {
+      this._setZoom(newZoom);
+    } else {
+      this._updateCanvasSize();
+    }
+  }
+
+  _notifyRuntimeOfResized() {
+    let rect = this.getBoundingClientRect();
+
+    if (rect.width == this._runtimeSize.width &&
+        rect.height == this._runtimeSize.height) {
+      return;
+    }
+
+    this._runtimeSize = rect;
+    this._runtimeOnResizedListener.forEach(listener => {
+      let evt = {
+        type: 'resize',
+        target: this._viewportController
+      };
+      if (typeof listener === 'function') {
+        listener(evt);
+      } else if (typeof listener.handleEvent === 'function') {
+        listener.handleEvent(evt);
+      }
+    });
+  }
+
+  _getEventTarget(type) {
+    switch(type) {
+      case 'keydown':
+      case 'keyup':
+      case 'keypress':
+        return window;
+    }
+    return this._viewportController;
+  }
+
+  _doAction(message) {
+    if (this._actionHandler) {
+      this._actionHandler(message);
+    }
+  }
+
+  _refresh() {
+    if (this._nextPosition) {
+      this._viewportController.scrollTo(
+        this._nextPosition.x, this._nextPosition.y);
+      this._nextPosition = null;
+    }
+
+    this._runtimePosition = this.getScrollOffset();
+    this._doAction({
+      type: 'viewport',
+      xOffset: this._runtimePosition.x,
+      yOffset: this._runtimePosition.y,
+      zoom: this._zoom
+    });
+
+    let newPage = this._getMostVisiblePage();
+    if (newPage != this._page) {
+      this._page = newPage;
+      if (typeof this.onPageChanged === 'function') {
+        this.onPageChanged(newPage);
+      }
+    }
+  }
+
+  handleEvent(evt) {
+    switch(evt.type) {
+      case 'resize':
+        this._resize();
+        this._notifyRuntimeOfResized();
+        this._refresh();
+        break;
+      case 'scroll':
+        this._nextPosition = null;
+        let position = this.getScrollOffset();
+        if (this._runtimePosition.x != position.x ||
+            this._runtimePosition.y != position.y) {
+          this._refresh();
+        }
+        break;
+    }
+  }
+
+  rotateClockwise() {
+    this._doAction({
+      type: 'rotateClockwise'
+    });
+  }
+
+  rotateCounterClockwise() {
+    this._doAction({
+      type: 'rotateCounterclockwise'
+    });
+  }
+
+  // A handler for delivering messages to runtime.
+  registerActionHandler(handler) {
+    if (typeof handler === 'function') {
+      this._actionHandler = handler;
+    }
+  }
+
+  /***************************/
+  /* PPAPIViewport Interface */
+  /***************************/
+
+  addView(canvas) {
+    this._canvasContainer.appendChild(canvas);
+  }
+
+  clearView() {
+    this._canvasContainer.innerHTML = '';
+  }
+
+  getBoundingClientRect() {
+    return this._canvasContainer.getBoundingClientRect();
+  }
+
+  is(element) {
+    return element == this._viewportController;
+  }
+
+  bindUIEvent(type, listener) {
+    if (type == 'fullscreenchange' || type == 'MozScrolledAreaChanged') {
+      // These two events won't be bound on a target because they should be
+      // fully controlled by UI layer, and we'll manually trigger the resize
+      // event once needed.
+      return;
+    }
+    switch(type) {
+      case 'resize':
+        this._runtimeOnResizedListener.push(listener);
+        break;
+      default:
+        this._getEventTarget(type).addEventListener(type, listener);
+    }
+  }
+
+  unbindUIEvent(type, listener) {
+    if (type == 'fullscreenchange' || type == 'MozScrolledAreaChanged') {
+      return;
+    }
+    switch(type) {
+      case 'resize':
+        this._runtimeOnResizedListener =
+          this._runtimeOnResizedListener.filter(item => item != listener);
+        break;
+      default:
+        this._getEventTarget(type).removeEventListener(type, listener);
+    }
+  }
+
+  setCursor(cursor) {
+    this._viewportController.style.cursor = cursor;
+  }
+
+  getScrollOffset() {
+    return {
+      x: this._viewportController.scrollLeft,
+      y: this._viewportController.scrollTop
+    };
+  }
+
+  // Notified by runtime.
+  notify(message) {
+    switch (message.type) {
+      case 'loadProgress':
+        this._updateProgress(message.progress);
+        break;
+      case 'documentDimensions':
+        this._setDocumentDimensions(message);
+        break;
+    }
+  }
+}
--- a/browser/extensions/mortar/host/pdf/chrome/locale/viewer.en-US.properties
+++ b/browser/extensions/mortar/host/pdf/chrome/locale/viewer.en-US.properties
@ -0,0 +1,173 @@
+# Copyright 2012 Mozilla Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Main toolbar buttons (tooltips and alt text for images)
+previous.title=Previous Page
+previous_label=Previous
+next.title=Next Page
+next_label=Next
+
+# LOCALIZATION NOTE (page_label, page_of):
+# These strings are concatenated to form the "Page: X of Y" string.
+# Do not translate "{{pageCount}}", it will be substituted with a number
+# representing the total number of pages.
+page_label=Page:
+page_of=of {{pageCount}}
+
+zoom_out.title=Zoom Out
+zoom_out_label=Zoom Out
+zoom_in.title=Zoom In
+zoom_in_label=Zoom In
+zoom.title=Zoom
+presentation_mode.title=Switch to Presentation Mode
+presentation_mode_label=Presentation Mode
+open_file.title=Open File
+open_file_label=Open
+print.title=Print
+print_label=Print
+download.title=Download
+download_label=Download
+bookmark.title=Current view (copy or open in new window)
+bookmark_label=Current View
+
+# Secondary toolbar and context menu
+tools.title=Tools
+tools_label=Tools
+first_page.title=Go to First Page
+first_page.label=Go to First Page
+first_page_label=Go to First Page
+last_page.title=Go to Last Page
+last_page.label=Go to Last Page
+last_page_label=Go to Last Page
+page_rotate_cw.title=Rotate Clockwise
+page_rotate_cw.label=Rotate Clockwise
+page_rotate_cw_label=Rotate Clockwise
+page_rotate_ccw.title=Rotate Counterclockwise
+page_rotate_ccw.label=Rotate Counterclockwise
+page_rotate_ccw_label=Rotate Counterclockwise
+
+hand_tool_enable.title=Enable hand tool
+hand_tool_enable_label=Enable hand tool
+hand_tool_disable.title=Disable hand tool
+hand_tool_disable_label=Disable hand tool
+
+# Document properties dialog box
+document_properties.title=Document Properties…
+document_properties_label=Document Properties…
+document_properties_file_name=File name:
+document_properties_file_size=File size:
+# LOCALIZATION NOTE (document_properties_kb): "{{size_kb}}" and "{{size_b}}"
+# will be replaced by the PDF file size in kilobytes, respectively in bytes.
+document_properties_kb={{size_kb}} KB ({{size_b}} bytes)
+# LOCALIZATION NOTE (document_properties_mb): "{{size_mb}}" and "{{size_b}}"
+# will be replaced by the PDF file size in megabytes, respectively in bytes.
+document_properties_mb={{size_mb}} MB ({{size_b}} bytes)
+document_properties_title=Title:
+document_properties_author=Author:
+document_properties_subject=Subject:
+document_properties_keywords=Keywords:
+document_properties_creation_date=Creation Date:
+document_properties_modification_date=Modification Date:
+# LOCALIZATION NOTE (document_properties_date_string): "{{date}}" and "{{time}}"
+# will be replaced by the creation/modification date, and time, of the PDF file.
+document_properties_date_string={{date}}, {{time}}
+document_properties_creator=Creator:
+document_properties_producer=PDF Producer:
+document_properties_version=PDF Version:
+document_properties_page_count=Page Count:
+document_properties_close=Close
+
+# Tooltips and alt text for side panel toolbar buttons
+# (the _label strings are alt text for the buttons, the .title strings are
+# tooltips)
+toggle_sidebar.title=Toggle Sidebar
+toggle_sidebar_label=Toggle Sidebar
+outline.title=Show Document Outline
+outline_label=Document Outline
+attachments.title=Show Attachments
+attachments_label=Attachments
+thumbs.title=Show Thumbnails
+thumbs_label=Thumbnails
+findbar.title=Find in Document
+findbar_label=Find
+
+# Thumbnails panel item (tooltip and alt text for images)
+# LOCALIZATION NOTE (thumb_page_title): "{{page}}" will be replaced by the page
+# number.
+thumb_page_title=Page {{page}}
+# LOCALIZATION NOTE (thumb_page_canvas): "{{page}}" will be replaced by the page
+# number.
+thumb_page_canvas=Thumbnail of Page {{page}}
+
+# Find panel button title and messages
+find_label=Find:
+find_previous.title=Find the previous occurrence of the phrase
+find_previous_label=Previous
+find_next.title=Find the next occurrence of the phrase
+find_next_label=Next
+find_highlight=Highlight all
+find_match_case_label=Match case
+find_reached_top=Reached top of document, continued from bottom
+find_reached_bottom=Reached end of document, continued from top
+find_not_found=Phrase not found
+
+# Error panel labels
+error_more_info=More Information
+error_less_info=Less Information
+error_close=Close
+# LOCALIZATION NOTE (error_version_info): "{{version}}" and "{{build}}" will be
+# replaced by the PDF.JS version and build ID.
+error_version_info=PDF.js v{{version}} (build: {{build}})
+# LOCALIZATION NOTE (error_message): "{{message}}" will be replaced by an
+# english string describing the error.
+error_message=Message: {{message}}
+# LOCALIZATION NOTE (error_stack): "{{stack}}" will be replaced with a stack
+# trace.
+error_stack=Stack: {{stack}}
+# LOCALIZATION NOTE (error_file): "{{file}}" will be replaced with a filename
+error_file=File: {{file}}
+# LOCALIZATION NOTE (error_line): "{{line}}" will be replaced with a line number
+error_line=Line: {{line}}
+rendering_error=An error occurred while rendering the page.
+
+# Predefined zoom values
+page_scale_width=Page Width
+page_scale_fit=Page Fit
+page_scale_auto=Automatic Zoom
+page_scale_actual=Actual Size
+# LOCALIZATION NOTE (page_scale_percent): "{{scale}}" will be replaced by a
+# numerical scale value.
+page_scale_percent={{scale}}%
+
+# Loading indicator messages
+loading_error_indicator=Error
+loading_error=An error occurred while loading the PDF.
+invalid_file_error=Invalid or corrupted PDF file.
+missing_file_error=Missing PDF file.
+unexpected_response_error=Unexpected server response.
+
+# LOCALIZATION NOTE (text_annotation_type.alt): This is used as a tooltip.
+# "{{type}}" will be replaced with an annotation type from a list defined in
+# the PDF spec (32000-1:2008 Table 169 – Annotation types).
+# Some common types are e.g.: "Check", "Text", "Comment", "Note"
+text_annotation_type.alt=[{{type}} Annotation]
+password_label=Enter the password to open this PDF file.
+password_invalid=Invalid password. Please try again.
+password_ok=OK
+password_cancel=Cancel
+
+printing_not_supported=Warning: Printing is not fully supported by this browser.
+printing_not_ready=Warning: The PDF is not fully loaded for printing.
+web_fonts_disabled=Web fonts are disabled: unable to use embedded PDF fonts.
+document_colors_not_allowed=PDF documents are not allowed to use their own colors: 'Allow pages to choose their own colors' is deactivated in the browser.
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-check.svg
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-check.svg
@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="40"
+   height="40"
+   viewBox="0 0 40 40">
+  <path
+     d="M 1.5006714,23.536225 6.8925879,18.994244 14.585721,26.037937 34.019683,4.5410479 38.499329,9.2235032 14.585721,35.458952 z"
+     id="path4"
+     style="fill:#ffff00;fill-opacity:1;stroke:#000000;stroke-width:1.25402856;stroke-opacity:1" />
+</svg>
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-comment.svg
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-comment.svg
@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   height="40"
+   width="40"
+   viewBox="0 0 40 40">
+  <rect
+     style="fill:#ffff00;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+     width="33.76017"
+     height="33.76017"
+     x="3.119915"
+     y="3.119915" />
+  <path
+     d="m 20.677967,8.54499 c -7.342801,0 -13.295293,4.954293 -13.295293,11.065751 0,2.088793 0.3647173,3.484376 1.575539,5.150563 L 6.0267418,31.45501 13.560595,29.011117 c 2.221262,1.387962 4.125932,1.665377 7.117372,1.665377 7.3428,0 13.295291,-4.954295 13.295291,-11.065753 0,-6.111458 -5.952491,-11.065751 -13.295291,-11.065751 z"
+     style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:0.93031836;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"/>
+</svg>
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-help.svg
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-help.svg
@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="40"
+   height="40"
+   viewBox="0 0 40 40">
+  <g
+     transform="translate(0,-60)"
+     id="layer1">
+    <rect
+       width="36.460953"
+       height="34.805603"
+       x="1.7695236"
+       y="62.597198"
+       style="fill:#ffff00;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1.30826771;stroke-opacity:1" />
+    <g
+       transform="matrix(0.88763677,0,0,0.88763677,2.2472646,8.9890584)">
+      <path
+         d="M 20,64.526342 C 11.454135,64.526342 4.5263421,71.454135 4.5263421,80 4.5263421,88.545865 11.454135,95.473658 20,95.473658 28.545865,95.473658 35.473658,88.545865 35.473658,80 35.473658,71.454135 28.545865,64.526342 20,64.526342 z m -0.408738,9.488564 c 3.527079,0 6.393832,2.84061 6.393832,6.335441 0,3.494831 -2.866753,6.335441 -6.393832,6.335441 -3.527079,0 -6.393832,-2.84061 -6.393832,-6.335441 0,-3.494831 2.866753,-6.335441 6.393832,-6.335441 z"
+         style="fill:#ffffff;fill-opacity:1;fill-rule:nonzero;stroke:#000000;stroke-width:1.02768445;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+      <path
+         d="m 7.2335209,71.819938 4.9702591,4.161823 c -1.679956,2.581606 -1.443939,6.069592 0.159325,8.677725 l -5.1263071,3.424463 c 0.67516,1.231452 3.0166401,3.547686 4.2331971,4.194757 l 3.907728,-4.567277 c 2.541952,1.45975 5.730694,1.392161 8.438683,-0.12614 l 3.469517,6.108336 c 1.129779,-0.44367 4.742234,-3.449633 5.416358,-5.003859 l -5.46204,-4.415541 c 1.44319,-2.424098 1.651175,-5.267515 0.557303,-7.748623 l 5.903195,-3.833951 C 33.14257,71.704996 30.616217,69.018606 29.02952,67.99296 l -4.118813,4.981678 C 22.411934,71.205099 18.900853,70.937534 16.041319,72.32916 l -3.595408,-5.322091 c -1.345962,0.579488 -4.1293881,2.921233 -5.2123901,4.812869 z m 8.1010311,3.426672 c 2.75284,-2.446266 6.769149,-2.144694 9.048998,0.420874 2.279848,2.56557 2.113919,6.596919 -0.638924,9.043185 -2.752841,2.446267 -6.775754,2.13726 -9.055604,-0.428308 -2.279851,-2.565568 -2.107313,-6.589485 0.64553,-9.035751 z"
+         style="fill:#000000;fill-opacity:1;stroke:none" />
+    </g>
+  </g>
+</svg>
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-insert.svg
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-insert.svg
@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="64"
+   height="64"
+   viewBox="0 0 64 64">
+  <path
+     d="M 32.003143,1.4044602 57.432701,62.632577 6.5672991,62.627924 z"
+     style="fill:#ffff00;fill-opacity:0.94117647;fill-rule:nonzero;stroke:#000000;stroke-width:1.00493038;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+</svg>
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-key.svg
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-key.svg
@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="64"
+   height="64"
+   viewBox="0 0 64 64">
+  <path
+     d="M 25.470843,9.4933766 C 25.30219,12.141818 30.139101,14.445969 34.704831,13.529144 40.62635,12.541995 41.398833,7.3856498 35.97505,5.777863 31.400921,4.1549155 25.157674,6.5445892 25.470843,9.4933766 z M 4.5246282,17.652051 C 4.068249,11.832873 9.2742983,5.9270407 18.437379,3.0977088 29.751911,-0.87185184 45.495663,1.4008022 53.603953,7.1104009 c 9.275765,6.1889221 7.158128,16.2079421 -3.171076,21.5939521 -1.784316,1.635815 -6.380222,1.21421 -7.068351,3.186186 -1.04003,0.972427 -1.288046,2.050158 -1.232864,3.168203 1.015111,2.000108 -3.831548,1.633216 -3.270553,3.759574 0.589477,5.264544 -0.179276,10.53738 -0.362842,15.806257 -0.492006,2.184998 1.163456,4.574232 -0.734888,6.610642 -2.482919,2.325184 -7.30604,2.189143 -9.193497,-0.274767 -2.733688,-1.740626 -8.254447,-3.615254 -6.104247,-6.339626 3.468112,-1.708686 -2.116197,-3.449897 0.431242,-5.080274 5.058402,-1.39256 -2.393215,-2.304318 -0.146889,-4.334645 3.069198,-0.977415 2.056986,-2.518352 -0.219121,-3.540397 1.876567,-1.807151 1.484149,-4.868919 -2.565455,-5.942205 0.150866,-1.805474 2.905737,-4.136876 -1.679967,-5.20493 C 10.260902,27.882167 4.6872697,22.95045 4.5245945,17.652051 z"
+     id="path604"
+     style="fill:#ffff00;fill-opacity:1;stroke:#000000;stroke-width:1.72665179;stroke-opacity:1" />
+</svg>
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-newparagraph.svg
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-newparagraph.svg
@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="64"
+   height="64"
+   viewBox="0 0 64 64">
+  <path
+     d="M 32.003143,10.913072 57.432701,53.086929 6.567299,53.083723 z"
+     id="path2985"
+     style="fill:#ffff00;fill-opacity:0.94117647;fill-rule:nonzero;stroke:#000000;stroke-width:0.83403099;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+</svg>
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-noicon.svg
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-noicon.svg
@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="40"
+   height="40"
+   viewBox="0 0 40 40">
+</svg>
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-note.svg
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-note.svg
@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="40"
+   height="40"
+   viewBox="0 0 40 40">
+  <rect
+     width="36.075428"
+     height="31.096582"
+     x="1.962286"
+     y="4.4517088"
+     id="rect4"
+     style="fill:#ffff00;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1.23004246;stroke-opacity:1" />
+  <rect
+     width="27.96859"
+     height="1.5012145"
+     x="6.0157046"
+     y="10.285"
+     id="rect6"
+     style="fill:#000000;fill-opacity:1;stroke:none" />
+  <rect
+     width="27.96859"
+     height="0.85783684"
+     x="6.0157056"
+     y="23.21689"
+     id="rect8"
+     style="fill:#000000;fill-opacity:1;stroke:none" />
+  <rect
+     width="27.96859"
+     height="0.85783684"
+     x="5.8130345"
+     y="28.964394"
+     id="rect10"
+     style="fill:#000000;fill-opacity:1;stroke:none" />
+  <rect
+     width="27.96859"
+     height="0.85783684"
+     x="6.0157046"
+     y="17.426493"
+     id="rect12"
+     style="fill:#000000;fill-opacity:1;stroke:none" />
+</svg>
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-paragraph.svg
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/annotation-paragraph.svg
@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="40"
+   height="40"
+   viewBox="0 0 40 40">
+  <rect
+     width="33.76017"
+     height="33.76017"
+     x="3.119915"
+     y="3.119915"
+     style="fill:#ffff00;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+  <path
+     d="m 17.692678,34.50206 0,-16.182224 c -1.930515,-0.103225 -3.455824,-0.730383 -4.57593,-1.881473 -1.12011,-1.151067 -1.680164,-2.619596 -1.680164,-4.405591 0,-1.992435 0.621995,-3.5796849 1.865988,-4.7617553 1.243989,-1.1820288 3.06352,-1.7730536 5.458598,-1.7730764 l 9.802246,0 0,2.6789711 -2.229895,0 0,26.3251486 -2.632515,0 0,-26.3251486 -3.45324,0 0,26.3251486 z"
+     style="font-size:29.42051125px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:start;line-height:125%;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.07795751;stroke-opacity:1;font-family:Arial;-inkscape-font-specification:Arial" />
+</svg>
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-next-rtl.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-next-rtl.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-next-rtl@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-next-rtl@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-next.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-next.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-next@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-next@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-previous-rtl.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-previous-rtl.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-previous-rtl@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-previous-rtl@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-previous.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-previous.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-previous@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/findbarButton-previous@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/grab.cur
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/grab.cur
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/grabbing.cur
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/grabbing.cur
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/loading-icon.gif
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/loading-icon.gif
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/loading-small.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/loading-small.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/loading-small@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/loading-small@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-documentProperties.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-documentProperties.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-documentProperties@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-documentProperties@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-firstPage.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-firstPage.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-firstPage@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-firstPage@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-handTool.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-handTool.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-handTool@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-handTool@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-lastPage.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-lastPage.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-lastPage@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-lastPage@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-rotateCcw.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-rotateCcw.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-rotateCcw@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-rotateCcw@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-rotateCw.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-rotateCw.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-rotateCw@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/secondaryToolbarButton-rotateCw@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/shadow.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/shadow.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/texture.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/texture.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-bookmark.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-bookmark.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-bookmark@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-bookmark@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-download.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-download.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-download@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-download@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-menuArrows.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-menuArrows.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-menuArrows@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-menuArrows@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-openFile.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-openFile.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-openFile@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-openFile@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageDown-rtl.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageDown-rtl.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageDown-rtl@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageDown-rtl@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageDown.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageDown.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageDown@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageDown@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageUp-rtl.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageUp-rtl.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageUp-rtl@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageUp-rtl@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageUp.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageUp.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageUp@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-pageUp@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-presentationMode.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-presentationMode.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-presentationMode@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-presentationMode@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-print.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-print.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-print@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-print@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-search.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-search.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-search@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-search@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-secondaryToolbarToggle-rtl.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-secondaryToolbarToggle-rtl.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-secondaryToolbarToggle-rtl@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-secondaryToolbarToggle-rtl@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-secondaryToolbarToggle.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-secondaryToolbarToggle.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-secondaryToolbarToggle@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-secondaryToolbarToggle@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-sidebarToggle-rtl.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-sidebarToggle-rtl.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-sidebarToggle-rtl@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-sidebarToggle-rtl@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-sidebarToggle.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-sidebarToggle.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-sidebarToggle@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-sidebarToggle@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewAttachments.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewAttachments.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewAttachments@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewAttachments@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewOutline-rtl.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewOutline-rtl.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewOutline-rtl@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewOutline-rtl@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewOutline.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewOutline.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewOutline@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewOutline@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewThumbnail.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewThumbnail.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewThumbnail@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-viewThumbnail@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-zoomIn.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-zoomIn.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-zoomIn@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-zoomIn@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-zoomOut.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-zoomOut.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-zoomOut@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/toolbarButton-zoomOut@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/treeitem-collapsed-rtl.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/treeitem-collapsed-rtl.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/treeitem-collapsed-rtl@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/treeitem-collapsed-rtl@2x.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/treeitem-collapsed.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/treeitem-collapsed.png
--- a/browser/extensions/mortar/host/pdf/chrome/style/images/treeitem-collapsed@2x.png
+++ b/browser/extensions/mortar/host/pdf/chrome/style/images/treeitem-collapsed@2x.png
--- a/Показать больше
+++ b/Показать больше