Allow shaped-desktop hosts to send shape only when it changes.

remoting/client/plugin/pepper_video_renderer_3d.h

 // 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.
 
 #ifndef REMOTING_CLIENT_PLUGIN_PEPPER_VIDEO_RENDERER_3D_H_
 #define REMOTING_CLIENT_PLUGIN_PEPPER_VIDEO_RENDERER_3D_H_
 
 #include <deque>
 #include <string>
 
@@ skipping 85 matching lines @@
   void CheckGLError();
 
   EventHandler* event_handler_;
 
   pp::Graphics3D graphics_;
   const PPB_OpenGLES2* gles2_if_;
   pp::VideoDecoder video_decoder_;
 
   webrtc::DesktopSize frame_size_;
   webrtc::DesktopVector frame_dpi_;
-  webrtc::DesktopRegion desktop_shape_;
+  scoped_ptr<webrtc::DesktopRegion> frame_shape_;
 
   webrtc::DesktopSize view_size_;
 
   ChromotingStats stats_;
   int64 latest_input_event_timestamp_ ;
 
   bool initialization_finished_;
   bool decode_pending_;
   bool get_picture_pending_;
   bool paint_pending_;
@@ skipping 37 matching lines @@
   bool debug_dirty_region_;
 
   pp::CompletionCallbackFactory<PepperVideoRenderer3D> callback_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperVideoRenderer3D);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CLIENT_PLUGIN_PEPPER_VIDEO_RENDERER_3D_H_