gpu: Compositor management of GpuMemoryBuffer instances.

content/browser/gpu/browser_gpu_channel_host_factory.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_BROWSER_GPU_BROWSER_GPU_CHANNEL_HOST_FACTORY_H_
 #define CONTENT_BROWSER_GPU_BROWSER_GPU_CHANNEL_HOST_FACTORY_H_
 
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/common/gpu/client/gpu_channel_host.h"
 #include "ipc/message_filter.h"
 
 namespace content {
-class GpuMemoryBufferImpl;
+class BrowserGpuMemoryBufferManager;
 class GpuMemoryBufferFactoryHostImpl;
 
 class CONTENT_EXPORT BrowserGpuChannelHostFactory
     : public GpuChannelHostFactory {
  public:
   static void Initialize(bool establish_gpu_channel);
   static void Terminate();
   static BrowserGpuChannelHostFactory* instance() { return instance_; }
 
   // GpuChannelHostFactory implementation.
   virtual bool IsMainThread() override;
   virtual base::MessageLoop* GetMainLoop() override;
   virtual scoped_refptr<base::MessageLoopProxy> GetIOLoopProxy() override;
   virtual scoped_ptr<base::SharedMemory> AllocateSharedMemory(
       size_t size) override;
   virtual CreateCommandBufferResult CreateViewCommandBuffer(
       int32 surface_id,
       const GPUCreateCommandBufferConfig& init_params,
       int32 route_id) override;
-  virtual scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
-      size_t width,
-      size_t height,
-      unsigned internalformat,
-      unsigned usage) override;
 
   // Specify a task runner and callback to be used for a set of messages. The
   // callback will be set up on the current GpuProcessHost, identified by
   // GpuProcessHostId().
   virtual void SetHandlerForControlMessages(
       const uint32* message_ids,
       size_t num_messages,
       const base::Callback<void(const IPC::Message&)>& handler,
       base::TaskRunner* target_task_runner);
   int GpuProcessHostId() { return gpu_host_id_; }
   GpuChannelHost* EstablishGpuChannelSync(
       CauseForGpuLaunch cause_for_gpu_launch);
   void EstablishGpuChannel(CauseForGpuLaunch cause_for_gpu_launch,
                            const base::Closure& callback);
   GpuChannelHost* GetGpuChannel();
   int GetGpuChannelId() { return gpu_client_id_; }
 
   // Used to skip GpuChannelHost tests when there can be no GPU process.
   static bool CanUseForTesting();
 
  private:
   struct CreateRequest;
-  struct AllocateGpuMemoryBufferRequest;
   class EstablishRequest;
 
   BrowserGpuChannelHostFactory();
   virtual ~BrowserGpuChannelHostFactory();
 
   void GpuChannelEstablished();
   void CreateViewCommandBufferOnIO(
       CreateRequest* request,
       int32 surface_id,
       const GPUCreateCommandBufferConfig& init_params);
   static void CommandBufferCreatedOnIO(CreateRequest* request,
                                        CreateCommandBufferResult result);
   static void AddFilterOnIO(int gpu_host_id,
                             scoped_refptr<IPC::MessageFilter> filter);
-  static void AllocateGpuMemoryBufferOnIO(
-      AllocateGpuMemoryBufferRequest* request);
-  static void OnGpuMemoryBufferCreated(AllocateGpuMemoryBufferRequest* request,
-                                       scoped_ptr<GpuMemoryBufferImpl> buffer);
 
   const int gpu_client_id_;
   scoped_ptr<base::WaitableEvent> shutdown_event_;
   scoped_refptr<GpuChannelHost> gpu_channel_;
   scoped_ptr<GpuMemoryBufferFactoryHostImpl> gpu_memory_buffer_factory_host_;
+  scoped_ptr<BrowserGpuMemoryBufferManager> gpu_memory_buffer_manager_;
   int gpu_host_id_;
   scoped_refptr<EstablishRequest> pending_request_;
   std::vector<base::Closure> established_callbacks_;
 
   static BrowserGpuChannelHostFactory* instance_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserGpuChannelHostFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GPU_BROWSER_GPU_CHANNEL_HOST_FACTORY_H_