Set the texture to cleared in VideoDecodeAccelerator::PictureReady.

content/common/gpu/media/gpu_video_decode_accelerator.h

Index: content/common/gpu/media/gpu_video_decode_accelerator.h
diff --git a/content/common/gpu/media/gpu_video_decode_accelerator.h b/content/common/gpu/media/gpu_video_decode_accelerator.h
index e085c537232496a3273d193583f9f50992056e0e..8da06494715c5205d3b92f7dff364dd5c8172dfa 100644
--- a/content/common/gpu/media/gpu_video_decode_accelerator.h
+++ b/content/common/gpu/media/gpu_video_decode_accelerator.h
@@ -81,6 +81,9 @@ class GpuVideoDecodeAccelerator
   // Called on IO thread when |filter_| has been removed.
   void OnFilterRemoved();
 
+  // Sets the texture to cleared. Returns false if an error has occurred.
+  bool SetTextureCleared(const media::Picture& picture);
+
   // Message to Send() when initialization is done.  Is only non-NULL during
   // initialization and is owned by the IPC channel underlying the
   // GpuCommandBufferStub.
@@ -117,6 +120,12 @@ class GpuVideoDecodeAccelerator
   // Weak pointers will be invalidated on IO thread.
   base::WeakPtrFactory<Client> weak_factory_for_io_;
 
+  // Picture buffer ID that have not set level cleared.
+  std::vector<int32> buffer_ids_;
+
+  // Texture ID that have not set level cleared.
+  std::vector<uint32> texture_ids_;

[Ami GONE FROM CHROMIUM, 2013/09/26 16:21:56]

comments for this and previous field could be clearer (s/set level cleared/been
cleared/)

names for both fields would benefit from an uncleared_ prefix, IMO.

[wuchengli, 2013/09/30 16:11:21]

Done.

+
   DISALLOW_IMPLICIT_CONSTRUCTORS(GpuVideoDecodeAccelerator);
 };