Convert ppapi/shared to use TrackedCallback.

ppapi/shared_impl/ppb_graphics_3d_shared.h

 // Copyright (c) 2011 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 PPAPI_SHARED_IMPL_GRAPHICS_3D_IMPL_H_
 #define PPAPI_SHARED_IMPL_GRAPHICS_3D_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/shared_impl/ppapi_shared_export.h"
+#include "ppapi/shared_impl/resource.h"
+#include "ppapi/shared_impl/tracked_callback.h"
 #include "ppapi/thunk/ppb_graphics_3d_api.h"
 
 namespace gpu {
 class CommandBuffer;
 namespace gles2 {
 class GLES2CmdHelper;
 class GLES2Implementation;
 }  // namespace gles2
 }  // namespace gpu.
 
 namespace ppapi {
 
 class PPAPI_SHARED_EXPORT PPB_Graphics3D_Shared
-    : public thunk::PPB_Graphics3D_API {
+    : public Resource,
+      public thunk::PPB_Graphics3D_API {
  public:
+  // Resource overrides.
+  virtual thunk::PPB_Graphics3D_API* AsPPB_Graphics3D_API() OVERRIDE;
+
   // PPB_Graphics3D_API implementation.
   virtual int32_t GetAttribs(int32_t* attrib_list) OVERRIDE;
   virtual int32_t SetAttribs(int32_t* attrib_list) OVERRIDE;
   virtual int32_t GetError() OVERRIDE;
   virtual int32_t ResizeBuffers(int32_t width, int32_t height) OVERRIDE;
   virtual int32_t SwapBuffers(PP_CompletionCallback callback) OVERRIDE;
   virtual void* MapTexSubImage2DCHROMIUM(GLenum target,
                                          GLint level,
                                          GLint xoffset,
                                          GLint yoffset,
                                          GLsizei width,
                                          GLsizei height,
                                          GLenum format,
                                          GLenum type,
                                          GLenum access) OVERRIDE;
   virtual void UnmapTexSubImage2DCHROMIUM(const void* mem) OVERRIDE;
 
   gpu::gles2::GLES2Implementation* gles2_impl() {
     return gles2_impl_.get();
   }
 
   // Sends swap-buffers notification to the plugin.
   void SwapBuffersACK(int32_t pp_error);
 
  protected:
-  PPB_Graphics3D_Shared();
+  PPB_Graphics3D_Shared(PP_Instance instance);
+  PPB_Graphics3D_Shared(const HostResource& host_resource);
   virtual ~PPB_Graphics3D_Shared();
 
   virtual gpu::CommandBuffer* GetCommandBuffer() = 0;
   virtual int32 DoSwapBuffers() = 0;
 
-  bool HasPendingSwap() { return swap_callback_.func != NULL; }
+  bool HasPendingSwap() const;
   bool CreateGLES2Impl(int32 command_buffer_size,
                        int32 transfer_buffer_size);
   void DestroyGLES2Impl();
 
  private:
   int32 transfer_buffer_id_;
   scoped_ptr<gpu::gles2::GLES2CmdHelper> gles2_helper_;
   scoped_ptr<gpu::gles2::GLES2Implementation> gles2_impl_;
 
   // Callback that needs to be executed when swap-buffers is completed.
-  PP_CompletionCallback swap_callback_;
+  scoped_refptr<TrackedCallback> swap_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_Graphics3D_Shared);
 };
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_GRAPHICS_3D_IMPL_H_