Integrate VDA with WebRTC.

content/renderer/media/rtc_video_decoder_factory.h

+// Copyright (c) 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_RTC_VIDEO_DECODER_FACTORY_H_
+#define CONTENT_RENDERER_MEDIA_RTC_VIDEO_DECODER_FACTORY_H_
+
+#include "base/message_loop_proxy.h"
+#include "base/threading/thread.h"
+#include "content/common/content_export.h"
+#include "third_party/libjingle/source/talk/media/webrtc/webrtcvideodecoderfactory.h"
+
+namespace webrtc {
+class VideoDecoder;
+}
+
+namespace content {
+class RendererGpuVideoDecoderFactories;
+
+class CONTENT_EXPORT RTCVideoDecoderFactory
+    : NON_EXPORTED_BASE(public cricket::WebRtcVideoDecoderFactory) {
+ public:
+  RTCVideoDecoderFactory(
+      const scoped_refptr<RendererGpuVideoDecoderFactories>& gpu_factories,
+      scoped_ptr<base::Thread> vda_thread);
+
+  // Runs on Chrome_libJingle_WorkerThread. The child thread blocks on this
+  // completing.

[Ami GONE FROM CHROMIUM, 2013/06/13 20:10:03]

This is clearer, but even clearer might be "Child thread is blocked while this
runs."

[wuchengli, 2013/06/18 16:11:23]

Done.

+  virtual webrtc::VideoDecoder* CreateVideoDecoder(webrtc::VideoCodecType type)
+      OVERRIDE;
+
+  // Runs on Chrome_libJingle_WorkerThread. The child thread blocks on this
+  // completing.
+  virtual void DestroyVideoDecoder(webrtc::VideoDecoder* decoder) OVERRIDE;
+
+ private:
+  scoped_refptr<RendererGpuVideoDecoderFactories> gpu_factories_;
+  scoped_ptr<base::Thread> vda_thread_;
+
+  DISALLOW_COPY_AND_ASSIGN(RTCVideoDecoderFactory);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_MEDIA_RTC_VIDEO_DECODER_FACTORY_H_