gpu: Associate all GpuMemoryBuffers with unique IDs.

content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.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 CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_SURFACE_TEXTURE_H_
 #define CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_SURFACE_TEXTURE_H_
 
 #include "content/common/gpu/client/gpu_memory_buffer_impl.h"
 
 struct ANativeWindow;
 
 namespace content {
 
 // Implementation of GPU memory buffer based on SurfaceTextures.
 class GpuMemoryBufferImplSurfaceTexture : public GpuMemoryBufferImpl {
  public:
-  static void Create(const gfx::Size& size,
+  static void Create(gfx::GpuMemoryBufferId id,
+                     const gfx::Size& size,
                      Format format,
                      int client_id,
                      const CreationCallback& callback);
 
-  static void AllocateForChildProcess(const gfx::Size& size,
+  static void AllocateForChildProcess(gfx::GpuMemoryBufferId id,
+                                      const gfx::Size& size,
                                       Format format,
                                       int child_client_id,
                                       const AllocationCallback& callback);
 
   static scoped_ptr<GpuMemoryBufferImpl> CreateFromHandle(
       const gfx::GpuMemoryBufferHandle& handle,
       const gfx::Size& size,
       Format format,
       const DestructionCallback& callback);
 
-  static void DeletedByChildProcess(const gfx::GpuMemoryBufferId& id,
+  static void DeletedByChildProcess(gfx::GpuMemoryBufferId id,
+                                    int child_client_id,
                                     uint32_t sync_point);
 
   static bool IsFormatSupported(Format format);
   static bool IsUsageSupported(Usage usage);
   static bool IsConfigurationSupported(Format format, Usage usage);
   static int WindowFormat(Format format);
 
   // Overridden from gfx::GpuMemoryBuffer:
   virtual void* Map() override;
   virtual void Unmap() override;
   virtual gfx::GpuMemoryBufferHandle GetHandle() const override;
   virtual uint32 GetStride() const override;
 
  private:
-  GpuMemoryBufferImplSurfaceTexture(const gfx::Size& size,
+  GpuMemoryBufferImplSurfaceTexture(gfx::GpuMemoryBufferId id,
+                                    const gfx::Size& size,
                                     Format format,
                                     const DestructionCallback& callback,
-                                    const gfx::GpuMemoryBufferId& id,
                                     ANativeWindow* native_window);
   virtual ~GpuMemoryBufferImplSurfaceTexture();
 
-  gfx::GpuMemoryBufferId id_;
   ANativeWindow* native_window_;
   size_t stride_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImplSurfaceTexture);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_SURFACE_TEXTURE_H_