[DevTools] Switch from separate sendMessageToBackend method to using embedder.

Source/devtools/front_end/sdk/InspectorBackend.js

 /*
  * Copyright (C) 2011 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 595 matching lines @@
 }
 
 InspectorBackendClass.MainConnection.prototype = {
 
     /**
      * @param {!Object} messageObject
      */
     sendMessage: function(messageObject)
     {
         var message = JSON.stringify(messageObject);
-        InspectorFrontendHost.sendMessageToBackend(message);
+        InspectorFrontendHost.sendMessageToBrowser(message);
     },
 
     /**
      * @param {!WebInspector.Event} event
      */
     _dispatchMessage: function(event)
     {
         this.dispatch(/** @type {!Object|string} */ (event.data));
     },
 
@@ skipping 295 matching lines @@
 
 }
 
 InspectorBackendClass.Options = {
     dumpInspectorTimeStats: false,
     dumpInspectorProtocolMessages: false,
     suppressRequestErrors: false
 }
 
 InspectorBackend = new InspectorBackendClass();