DevTools: use shorthand syntax in interface definitions.

third_party/WebKit/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.
 /**
  * @implements {Sources.TabbedEditorContainerDelegate}
  * @implements {UI.Searchable}
  * @implements {UI.Replaceable}
  * @unrestricted
  */
 Sources.SourcesView = class extends UI.VBox {
@@ skipping 669 matching lines @@
 /**
  * @interface
  */
 Sources.SourcesView.EditorAction = function() {};
 
 Sources.SourcesView.EditorAction.prototype = {
   /**
    * @param {!Sources.SourcesView} sourcesView
    * @return {!UI.ToolbarButton}
    */
-  button: function(sourcesView) {}
+  button(sourcesView) {}
 };
 
 /**
  * @implements {UI.ActionDelegate}
  * @unrestricted
  */
 Sources.SourcesView.SwitchFileActionDelegate = class {
   /**
    * @param {!Workspace.UISourceCode} currentUISourceCode
    * @return {?Workspace.UISourceCode}
@@ skipping 60 matching lines @@
    * @return {boolean}
    */
   handleAction(context, actionId) {
     var sourcesView = UI.context.flavor(Sources.SourcesView);
     if (!sourcesView)
       return false;
     sourcesView._editorContainer.closeAllFiles();
     return true;
   }
 };