ozone: gpu: Add plumbing for platform-specific gpu messaging

content/gpu/gpu_child_thread.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_GPU_GPU_CHILD_THREAD_H_
 #define CONTENT_GPU_GPU_CHILD_THREAD_H_
 
 #include <queue>
 #include <string>
 
@@ skipping 41 matching lines @@
   void Init(const base::Time& process_start_time);
   void StopWatchdog();
 
   // ChildThread overrides.
   virtual bool Send(IPC::Message* msg) OVERRIDE;
   virtual bool OnControlMessageReceived(const IPC::Message& msg) OVERRIDE;
 
  private:
   // Message handlers.
   void OnInitialize();
+  void OnInitializePlatformSupport(int32 host_route_id);
   void OnCollectGraphicsInfo();
   void OnGetVideoMemoryUsageStats();
   void OnSetVideoMemoryWindowCount(uint32 window_count);
 
   void OnClean();
   void OnCrash();
   void OnHang();
   void OnDisableWatchdog();
 
 #if defined(USE_TCMALLOC)
@@ skipping 21 matching lines @@
 
   // Whether the GPU thread is running in the browser process.
   bool in_browser_process_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuChildThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_GPU_GPU_CHILD_THREAD_H_