Send hardware video frames with mailboxes.

content/renderer/media/android/stream_texture_factory_android.h

 // Copyright 2013 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_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_ANDROID_H_
 #define CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_ANDROID_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "cc/layers/video_frame_provider.h"
 #include "content/renderer/gpu/stream_texture_host_android.h"
+#include "gpu/command_buffer/common/mailbox.h"
 
 namespace WebKit {
 class WebGraphicsContext3D;
 }
 
 namespace content {
 
 // The proxy class for the gpu thread to notify the compositor thread
 // when a new video frame is available.
 class StreamTextureProxy : public StreamTextureHost::Listener {
@@ skipping 45 matching lines @@
 
   // Create the StreamTextureProxy object.
   StreamTextureProxy* CreateProxy();
 
   // Send an IPC message to the browser process to request a java surface
   // object for the given stream_id. After the the surface is created,
   // it will be passed back to the WebMediaPlayerAndroid object identified by
   // the player_id.
   void EstablishPeer(int stream_id, int player_id);
 
-  // Create the streamTexture and return the stream Id and set the texture id.
-  unsigned CreateStreamTexture(unsigned* texture_id);
+  // Create the streamTexture and return the stream Id and create a client-side
+  // texture id to refer to the streamTexture. The texture id is produced into
+  // a mailbox so it can be used to ship in a VideoFrame, with a sync point for
+  // when the mailbox can be accessed.
+  unsigned CreateStreamTexture(
+      unsigned texture_target,
+      unsigned* texture_id,
+      gpu::Mailbox* texture_mailbox,
+      unsigned* texture_mailbox_sync_point);
 
-  // Destroy the streamTexture for the given texture Id.
+  // Destroy the streamTexture for the given texture id, as well as the
+  // client side texture.
   void DestroyStreamTexture(unsigned texture_id);
 
  private:
   WebKit::WebGraphicsContext3D* context_;
   scoped_refptr<GpuChannelHost> channel_;
   int view_id_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(StreamTextureFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_ANDROID_H_