Use traceviewer package for trace parsing

\o/

lib/global-config.js

@@ -1,79 +0,0 @@
-/**
- * @license
- * Copyright 2015 Google Inc. All Rights Reserved.
- *
- * 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.
- */
-
-function enable () {
-  // Sets some global options so that the trace viewer code can work.
-  // It expects to be run inside of a browser, where host objects
-  // (and Polymer) exist. Since they don't they need stubbing out.
-  global.Polymer = function () {};
-  global.Polymer.elements = {};
-
-  global.HTMLUnknownElement = {};
-  global.HTMLDivElement = {};
-  global.document = {
-    currentScript: {
-      ownerDocument: {}
-    },
-
-    createElement: function () {
-      return {
-        style: {
-
-        }
-      };
-    }
-  };
-
-  global.vec2 = {create: function () {}, set: function () {}};
-  global.vec3 = {create: function () {}};
-  global.vec4 = {create: function () {}};
-  global.mat2d = {create: function () {}};
-  global.mat4 = {create: function () {}};
-  global.window = {
-    performance: {
-      now: function () {
-        return Date.now();
-      }
-    }, webkitRequestAnimationFrame: function (cb) {
-      cb();
-    }, requestAnimationFrame: function (cb) {
-      cb();
-    }
-  };
-}
-
-function disable () {
-
-  delete global.Polymer.elements;
-  delete global.Polymer;
-
-  delete global.HTMLUnknownElement;
-  delete global.HTMLDivElement;
-  delete global.document;
-
-  delete global.vec2;
-  delete global.vec3;
-  delete global.vec4;
-  delete global.mat2d;
-  delete global.mat4;
-  delete global.window;
-}
-
-module.exports = {
-  enable: enable,
-  disable: disable
-};

lib/processor.js

@@ -17,16 +17,13 @@
 
 /* global tr */
 
+var traceviewer = require('traceviewer');
+
 var URL = require('url');
 var RESPONSE = 'Response';
 var ANIMATION = 'Animation';
 var LOAD = 'Load';
 
-// Does a bunch on the global object, because the code for trace viewer
-// currently operates on `window`, and the conversion doesn't account for
-// requires and modules.
-var globalConfig = require('./global-config.js');
-
 function analyzeTrace (contents, opts) {
 
   var contentsJSON = null;
@@ -50,8 +47,6 @@ function analyzeTrace (contents, opts) {
   })];
 
   // Switch on all the globals we need, and import tracing.
-  globalConfig.enable();
-
   var model = convertEventsToModel(events);
   var processes = model.getAllProcesses();
   var traceProcess = null;
@@ -97,22 +92,12 @@ function analyzeTrace (contents, opts) {
   }
 
   traceProcess = summarizable.pop();
-  // Reset all the globals we had to define for window etc.
-  globalConfig.disable();
   return processTrace(model, traceProcess, opts);
 }
 
 function convertEventsToModel (events) {
-
-  require('./third_party/tracing/importer/import.js');
-  require('./third_party/tracing/extras/importer/trace_event_importer.js');
-  require('./third_party/tracing/extras/rail/rail_score.js');
-  require('./third_party/tracing/extras/rail/rail_ir_finder.js');
-  require('./tracing-config.js');
-
   var io = new tr.importer.ImportOptions();
   io.showImportWarnings = false;
-  io.shiftWorldToZero = true;
   io.pruneEmptyContainers = false;
 
   var model = new tr.Model();

lib/tracing-config.js

@@ -1,34 +0,0 @@
-/**
- * @license
- * Copyright 2015 Google Inc. All Rights Reserved.
- *
- * 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.
- */
-
-/* global tr */
-
-// Sets up a few stubs for tracing, particularly for the HTML Elements it
-// expects to exist, which won't because this is running in Node.
-tr.isHeadless = false;
-tr.ui.b.Overlay = function () {
-  return {
-    title: '',
-    msgEl: {
-      style: {
-        margin: ''
-      }
-    },
-    appendChild: function () {
-    }
-  };
-};

package.json

@@ -24,6 +24,7 @@
     "cheerio": "^0.19.0",
     "file": "^0.2.2",
     "selenium-webdriver": "^2.48.2",
+    "traceviewer": "^1.0.8",
     "walk": "^2.3.9"
   },
   "devDependencies": {