Remove threading from GpuVideoAcceleratorFactories

content/renderer/media/rtc_video_decoder.h

Index: content/renderer/media/rtc_video_decoder.h
diff --git a/content/renderer/media/rtc_video_decoder.h b/content/renderer/media/rtc_video_decoder.h
index 1af61260e79a8b48b89f6ee8d58c329839d16573..007f9b0490a3bf38d992ee583eccf91c9f2d7c6f 100644
--- a/content/renderer/media/rtc_video_decoder.h
+++ b/content/renderer/media/rtc_video_decoder.h
@@ -6,6 +6,7 @@
 #define CONTENT_RENDERER_MEDIA_RTC_VIDEO_DECODER_H_
 
 #include <deque>
+#include <list>
 #include <map>
 #include <set>
 #include <utility>
@@ -13,9 +14,7 @@
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/weak_ptr.h"
-#include "base/message_loop/message_loop.h"
 #include "base/synchronization/lock.h"
-#include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "content/common/content_export.h"
 #include "media/base/bitstream_buffer.h"
@@ -25,6 +24,7 @@
 #include "third_party/webrtc/modules/video_coding/codecs/interface/video_codec_interface.h"
 
 namespace base {
+class WaitableEvent;
 class MessageLoopProxy;
 };
 
@@ -47,8 +47,7 @@ namespace content {
 // frames are delivered to WebRTC on |vda_message_loop_|.
 class CONTENT_EXPORT RTCVideoDecoder
     : NON_EXPORTED_BASE(public webrtc::VideoDecoder),
-      public media::VideoDecodeAccelerator::Client,
-      public base::MessageLoop::DestructionObserver {
+      public media::VideoDecodeAccelerator::Client {
  public:
   virtual ~RTCVideoDecoder();
 
@@ -91,10 +90,6 @@ class CONTENT_EXPORT RTCVideoDecoder
   virtual void NotifyResetDone() OVERRIDE;
   virtual void NotifyError(media::VideoDecodeAccelerator::Error error) OVERRIDE;
 
-  // base::DestructionObserver implementation. Called when |vda_message_loop_|
-  // is stopped.
-  virtual void WillDestroyCurrentMessageLoop() OVERRIDE;
-
  private:
   class SHMBuffer;
   // Metadata of a bitstream buffer.
@@ -120,8 +115,6 @@ class CONTENT_EXPORT RTCVideoDecoder
   RTCVideoDecoder(
       const scoped_refptr<media::GpuVideoAcceleratorFactories>& factories);
 
-  void Initialize(base::WaitableEvent* waiter);
-
   // Requests a buffer to be decoded by VDA.
   void RequestBufferDecode();
 
@@ -163,6 +156,9 @@ class CONTENT_EXPORT RTCVideoDecoder
   void ReusePictureBuffer(int64 picture_buffer_id,
                           scoped_ptr<gpu::MailboxHolder> mailbox_holder);
 
+  // Create |vda_| on |vda_loop_proxy_|.
+  void CreateVDA(media::VideoCodecProfile profile, base::WaitableEvent* waiter);
+
   void DestroyTextures();
   void DestroyVDA();