Add multi-process GpuMemoryBuffer framework.

content/common/gpu/client/command_buffer_proxy_impl.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_COMMON_GPU_CLIENT_COMMAND_BUFFER_PROXY_IMPL_H_
 #define CONTENT_COMMON_GPU_CLIENT_COMMAND_BUFFER_PROXY_IMPL_H_
 
 #include <map>
 #include <queue>
 #include <string>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "content/common/gpu/gpu_memory_allocation.h"
-#include "content/common/gpu/gpu_memory_allocation.h"
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "gpu/command_buffer/common/command_buffer_shared.h"
 #include "gpu/command_buffer/common/gpu_control.h"
 #include "ipc/ipc_listener.h"
 #include "media/video/video_decode_accelerator.h"
 #include "ui/events/latency_info.h"
 
 struct GPUCommandBufferConsoleMessage;
 
 namespace base {
 class SharedMemory;
 }
 
+namespace gfx {
+class GpuMemoryBuffer;
+}
+
 namespace gpu {
 struct Mailbox;
 }
 
 namespace content {
 class GpuChannelHost;
 
 // Client side proxy that forwards messages synchronously to a
 // CommandBufferStub.
 class CommandBufferProxyImpl
@@ skipping 95 matching lines @@
   // CommandBufferProxyImpl implementation.
   virtual gpu::error::Error GetLastError() OVERRIDE;
 
   void SendManagedMemoryStats(const GpuManagedMemoryStats& stats);
 
   GpuChannelHost* channel() const { return channel_; }
 
  private:
   typedef std::map<int32, gpu::Buffer> TransferBufferMap;
   typedef base::hash_map<uint32, base::Closure> SignalTaskMap;
+  typedef std::map<int32, gfx::GpuMemoryBuffer*> GpuMemoryBufferMap;
 
   // Send an IPC message over the GPU channel. This is private to fully
   // encapsulate the channel; all callers of this function must explicitly
   // verify that the context has not been lost.
   bool Send(IPC::Message* msg);
 
   // Message handlers:
   void OnUpdateState(const gpu::CommandBuffer::State& state);
   void OnDestroyed(gpu::error::ContextLostReason reason);
   void OnEchoAck();
@@ skipping 37 matching lines @@
 
   base::Callback<void(const GpuMemoryAllocationForRenderer&)>
       memory_allocation_changed_callback_;
 
   GpuConsoleMessageCallback console_message_callback_;
 
   // Tasks to be invoked in SignalSyncPoint responses.
   uint32 next_signal_id_;
   SignalTaskMap signal_tasks_;
 
+  // Local cache of id to gpu memory buffer mapping.
+  GpuMemoryBufferMap gpu_memory_buffers_;
+
   DISALLOW_COPY_AND_ASSIGN(CommandBufferProxyImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_CLIENT_COMMAND_BUFFER_PROXY_IMPL_H_