Add a GpuMemoryBuffer pool that creates hardware backed VideoFrames.

content/renderer/media/renderer_gpu_video_accelerator_factories.h

Index: content/renderer/media/renderer_gpu_video_accelerator_factories.h
diff --git a/content/renderer/media/renderer_gpu_video_accelerator_factories.h b/content/renderer/media/renderer_gpu_video_accelerator_factories.h
index 2d1299a569433e5e8dc3b6fd2b5447903121c761..3b388c91a44f00c43b5fe05f658942c1da25692e 100644
--- a/content/renderer/media/renderer_gpu_video_accelerator_factories.h
+++ b/content/renderer/media/renderer_gpu_video_accelerator_factories.h
@@ -20,6 +20,10 @@ namespace base {
 class WaitableEvent;
 }
 
+namespace gpu {
+class GpuMemoryBufferManager;
+}
+
 namespace content {
 class ContextProviderCommandBuffer;
 class GLHelper;
@@ -58,6 +62,15 @@ class CONTENT_EXPORT RendererGpuVideoAcceleratorFactories
                       uint32 texture_target) override;
   void DeleteTexture(uint32 texture_id) override;
   void WaitSyncPoint(uint32 sync_point) override;
+
+  scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
+      const gfx::Size& size,
+      gfx::GpuMemoryBuffer::Format format,
+      gfx::GpuMemoryBuffer::Usage usage) override;
+
+  // Return or create a GLES2Interface. This method must be called from the
+  // thread associated with the 'task_runner' passed to the constructor.

[reveman, 2015/05/12 03:20:24]

nit: think this is implied from the class description above

[Daniele Castagna, 2015/05/12 21:21:29]

Removed the comment.

+  gpu::gles2::GLES2Interface* GetGLES2Interface() override;
   scoped_ptr<base::SharedMemory> CreateSharedMemory(size_t size) override;
   scoped_refptr<base::SingleThreadTaskRunner> GetTaskRunner() override;
 
@@ -87,6 +100,7 @@ class CONTENT_EXPORT RendererGpuVideoAcceleratorFactories
   scoped_refptr<GpuChannelHost> gpu_channel_host_;
   scoped_refptr<ContextProviderCommandBuffer> context_provider_;
   scoped_ptr<GLHelper> gl_helper_;
+  gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager_;

[reveman, 2015/05/12 03:20:24]

nit: const pointer

[Daniele Castagna, 2015/05/12 21:21:29]

Do you mean gpu::GpuMemoryBufferManager* const? Done.

const gpu::GpuMemoryBufferManager* can't be done since we use
AllocateGpuMemoryBuffer that is not const.

 
   // For sending requests to allocate shared memory in the Browser process.
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;