Bug 1280404 - Implement chrome.webNavigation.onTabReplaced, r=aswan

MozReview-Commit-ID: 6K167oHyqz2

--HG--
extra : rebase_source : 9b5b4caf61de22a94018d6d2a4a11f75f18ff207

toolkit/components/extensions/ext-webNavigation.js

@@ -161,6 +161,7 @@ function convertGetFrameResult(tabId, data) {
 extensions.registerSchemaAPI("webNavigation", "addon_parent", context => {
   return {
     webNavigation: {
+      onTabReplaced: ignoreEvent(context, "webNavigation.onTabReplaced"),
       onBeforeNavigate: new WebNavigationEventManager(context, "onBeforeNavigate").api(),
       onCommitted: new WebNavigationEventManager(context, "onCommitted").api(),
       onDOMContentLoaded: new WebNavigationEventManager(context, "onDOMContentLoaded").api(),

toolkit/components/extensions/schemas/web_navigation.json

@@ -340,7 +340,6 @@
       },
       {
         "name": "onTabReplaced",
-        "unsupported": true,
         "type": "function",
         "description": "Fired when the contents of the tab is replaced by a different (usually previously pre-rendered) tab.",
         "parameters": [

toolkit/components/extensions/test/mochitest/test_ext_webnavigation.html

@@ -21,6 +21,7 @@ function backgroundScript() {
   const URL = BASE + "/file_WebNavigation_page1.html";
 
   const EVENTS = [
+    "onTabReplaced",
     "onBeforeNavigate",
     "onCommitted",
     "onDOMContentLoaded",