DevTools: use shorthand syntax in interface definitions.

third_party/WebKit/Source/devtools/front_end/ui/ContextMenu.js

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 461 matching lines @@
  * @interface
  */
 UI.ContextMenu.Provider = function() {};
 
 UI.ContextMenu.Provider.prototype = {
   /**
    * @param {!Event} event
    * @param {!UI.ContextMenu} contextMenu
    * @param {!Object} target
    */
-  appendApplicableItems: function(event, contextMenu, target) {}
+  appendApplicableItems(event, contextMenu, target) {}
 };