Devtools: [WIP] Implement enhanced devtools extension language APIs

Source/devtools/front_end/sources/SourcesView.js

 // Copyright 2014 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.
 
 /**
  * @constructor
  * @implements {WebInspector.TabbedEditorContainerDelegate}
  * @implements {WebInspector.Searchable}
  * @implements {WebInspector.Replaceable}
  * @extends {WebInspector.VBox}
@@ skipping 60 matching lines @@
         event.returnValue = WebInspector.UIString("DevTools have unsaved changes that will be permanently lost.");
         WebInspector.inspectorView.setCurrentPanel(WebInspector.SourcesPanel.instance());
         for (var i = 0; i < unsavedSourceCodes.length; ++i)
             WebInspector.Revealer.reveal(unsavedSourceCodes[i]);
     }
     if (!window.opener)
         window.addEventListener("beforeunload", handleBeforeUnload, true);
 
     this._shortcuts = {};
     this.element.addEventListener("keydown", this._handleKeyDown.bind(this), false);
+
+    this.addEventListener(WebInspector.SourcesView.Events.EditorSelected, WebInspector.languageService.updateInferredMime, WebInspector.languageService);
 }
 
 WebInspector.SourcesView.Events = {
     EditorClosed: "EditorClosed",
     EditorSelected: "EditorSelected",
 }
 
 /**
  * @param {!WebInspector.UISourceCode} uiSourceCode
  * @return {string}
  */
 WebInspector.SourcesView.uiSourceCodeHighlighterType = function(uiSourceCode)
 {
     var networkContentType = WebInspector.NetworkProject.uiSourceCodeContentType(uiSourceCode);
     if (networkContentType)
         return networkContentType.canonicalMimeType();
 
-    var mimeType = WebInspector.ResourceType.mimeTypesForExtensions[uiSourceCode.extension().toLowerCase()];
+    var mimeType = WebInspector.ResourceType.mimeFromURL(uiSourceCode.uri());
     return mimeType || uiSourceCode.contentType().canonicalMimeType();
 }
 
 WebInspector.SourcesView.prototype = {
     /**
      * @param {function(!Array.<!WebInspector.KeyboardShortcut.Descriptor>, function(!Event=):boolean)} registerShortcutDelegate
      */
     registerShortcuts: function(registerShortcutDelegate)
     {
         /**
@@ skipping 707 matching lines @@
         var sourcesView = WebInspector.context.flavor(WebInspector.SourcesView);
         var currentUISourceCode = sourcesView.currentUISourceCode();
         if (!currentUISourceCode)
             return;
         var nextUISourceCode = WebInspector.SourcesView.SwitchFileActionDelegate._nextFile(currentUISourceCode);
         if (!nextUISourceCode)
             return;
         sourcesView.showSourceLocation(nextUISourceCode);
     }
 }