PPAPI: Refactor MessageChannel to prep for sync postMessae

content/renderer/pepper/pepper_plugin_instance_impl.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_RENDERER_PEPPER_PEPPER_PLUGIN_INSTANCE_IMPL_H_
 #define CONTENT_RENDERER_PEPPER_PEPPER_PLUGIN_INSTANCE_IMPL_H_
 
 #include <list>
 #include <set>
 #include <string>
@@ skipping 71 matching lines @@
 }
 
 namespace gfx {
 class Range;
 }
 
 namespace ppapi {
 class Resource;
 struct InputEventData;
 struct PPP_Instance_Combined;
+class ScopedPPVar;
 }
 
 namespace v8 {
 class Isolate;
 }
 
 namespace content {
 
 class ContentDecryptorDelegate;
 class FullscreenContainer;
@@ skipping 187 matching lines @@
 
   bool flash_fullscreen() const { return flash_fullscreen_; }
 
   // Switches between fullscreen and normal mode. The transition is
   // asynchronous. WebKit will trigger corresponding VewChanged calls.
   // Returns true on success, false on failure (e.g. trying to enter fullscreen
   // when not processing a user gesture or trying to set fullscreen when
   // already in fullscreen mode).
   bool SetFullscreen(bool fullscreen);
 
-  // Implementation of PPP_Messaging.
-  void HandleMessage(PP_Var message);
+  // Send the message on to the plugin.
+  void HandleMessage(ppapi::ScopedPPVar message);
 
   // Returns true if the plugin is processing a user gesture.
   bool IsProcessingUserGesture();
 
   // Returns the user gesture token to use for creating a WebScopedUserGesture,
   // if IsProcessingUserGesture returned true.
   blink::WebUserGestureToken CurrentUserGestureToken();
 
   // A mouse lock request was pending and this reports success or failure.
   void OnLockMouseACK(bool succeeded);
@@ skipping 560 matching lines @@
   base::WeakPtrFactory<PepperPluginInstanceImpl> view_change_weak_ptr_factory_;
   base::WeakPtrFactory<PepperPluginInstanceImpl> weak_factory_;
 
   friend class PpapiPluginInstanceTest;
   DISALLOW_COPY_AND_ASSIGN(PepperPluginInstanceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_PEPPER_PLUGIN_INSTANCE_IMPL_H_