Plumb GpuMemoryBuffer allocation to GPU process.

content/browser/gpu/browser_gpu_channel_host_factory.h

Index: content/browser/gpu/browser_gpu_channel_host_factory.h
diff --git a/content/browser/gpu/browser_gpu_channel_host_factory.h b/content/browser/gpu/browser_gpu_channel_host_factory.h
index c2637f033cc3ca00ce518c353f8c9e901037f68e..a442d160e65c135a4439e6655450ec141852a31e 100644
--- a/content/browser/gpu/browser_gpu_channel_host_factory.h
+++ b/content/browser/gpu/browser_gpu_channel_host_factory.h
@@ -10,12 +10,14 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/common/gpu/client/gpu_channel_host.h"
+#include "content/common/gpu/client/gpu_memory_buffer_factory_host.h"
 #include "ipc/message_filter.h"
 
 namespace content {
 
 class CONTENT_EXPORT BrowserGpuChannelHostFactory
-    : public GpuChannelHostFactory {
+    : public GpuChannelHostFactory,
+      public GpuMemoryBufferFactoryHost {
  public:
   static void Initialize(bool establish_gpu_channel);
   static void Terminate();
@@ -42,6 +44,16 @@ class CONTENT_EXPORT BrowserGpuChannelHostFactory
       unsigned internalformat,
       unsigned usage) OVERRIDE;
 
+  // GpuMemoryBufferFactoryHost implementation.
+  virtual void CreateGpuMemoryBuffer(
+      const gfx::GpuMemoryBufferHandle& handle,
+      const gfx::Size& size,
+      unsigned internalformat,
+      unsigned usage,
+      const CreateGpuMemoryBufferCallback& callback) OVERRIDE;
+  virtual void DestroyGpuMemoryBuffer(const gfx::GpuMemoryBufferHandle& handle,
+                                      int32 sync_point) 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().
@@ -86,6 +98,20 @@ class CONTENT_EXPORT BrowserGpuChannelHostFactory
   static void AddFilterOnIO(int gpu_host_id,
                             scoped_refptr<IPC::MessageFilter> filter);
 
+  void CreateGpuMemoryBufferOnIO(const gfx::GpuMemoryBufferHandle& handle,
+                                 const gfx::Size& size,
+                                 unsigned internalformat,
+                                 unsigned usage,
+                                 uint32 request_id);
+  void GpuMemoryBufferCreatedOnIO(
+      uint32 request_id,
+      const gfx::GpuMemoryBufferHandle& handle);
+  void OnGpuMemoryBufferCreated(
+      uint32 request_id,
+      const gfx::GpuMemoryBufferHandle& handle);
+  void DestroyGpuMemoryBufferOnIO(const gfx::GpuMemoryBufferHandle& handle,
+                                  int32 sync_point);
+
   const int gpu_client_id_;
   scoped_ptr<base::WaitableEvent> shutdown_event_;
   scoped_refptr<GpuChannelHost> gpu_channel_;
@@ -93,6 +119,11 @@ class CONTENT_EXPORT BrowserGpuChannelHostFactory
   scoped_refptr<EstablishRequest> pending_request_;
   std::vector<base::Closure> established_callbacks_;
 
+  uint32 next_create_gpu_memory_buffer_request_id_;
+  typedef std::map<uint32, CreateGpuMemoryBufferCallback>
+      CreateGpuMemoryBufferCallbackMap;
+  CreateGpuMemoryBufferCallbackMap create_gpu_memory_buffer_requests_;
+
   static BrowserGpuChannelHostFactory* instance_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserGpuChannelHostFactory);