PPAPI: move GLES2Implementation to PPAPI glue

chrome/renderer/pepper_platform_context_3d_impl.h

 // Copyright (c) 2010 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 CHROME_RENDERER_PEPPER_PLATFORM_CONTEXT_3D_IMPL_H_
 #define CHROME_RENDERER_PEPPER_PLATFORM_CONTEXT_3D_IMPL_H_
 
 #include "webkit/plugins/ppapi/plugin_delegate.h"
 
 #ifdef ENABLE_GPU
 
+namespace gpu {
+
+class CommandBuffer;
+
+}  // namespace gpu
+
 namespace ggl {
 
 class Context;
 
 }  // namespace ggl;
 
+class GpuChannelHost;
+class CommandBufferProxy;
+
 class PlatformContext3DImpl
     : public webkit::ppapi::PluginDelegate::PlatformContext3D {
  public:
   explicit PlatformContext3DImpl(ggl::Context* parent_context);
   virtual ~PlatformContext3DImpl();
 
   virtual bool Init();
-  virtual bool SwapBuffers();
-  virtual unsigned GetError();
   virtual void SetSwapBuffersCallback(Callback0::Type* callback);
   virtual unsigned GetBackingTextureId();
-  virtual gpu::gles2::GLES2Implementation* GetGLES2Implementation();
+  virtual gpu::CommandBuffer* GetCommandBuffer();
 
  private:
+  bool InitRaw();
+
   ggl::Context* parent_context_;
-  ggl::Context* context_;
+  scoped_refptr<GpuChannelHost> channel_;
+  unsigned int parent_texture_id_;
+  CommandBufferProxy* command_buffer_;
 };
 
 #endif  // ENABLE_GPU
 
 #endif  // CHROME_RENDERER_PEPPER_PLATFORM_CONTEXT_3D_IMPL_H_