Fix a deadlock in the GPU Video decoding code in the renderer which would occur when the renderer

media/filters/gpu_video_decoder.cc

 // Copyright (c) 2012 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.
 
 #include "media/filters/gpu_video_decoder.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/message_loop.h"
 #include "base/stl_util.h"
@@ skipping 459 matching lines @@
     DCHECK(ready_video_frames_.empty());
     EnsureDemuxOrDecode();
   }
 }
 
 void GpuVideoDecoder::EnsureDemuxOrDecode() {
   DCHECK(gvd_loop_proxy_->BelongsToCurrentThread());
   if (demuxer_read_in_progress_)
     return;
   demuxer_read_in_progress_ = true;
-  demuxer_stream_->Read(base::Bind(
-      &GpuVideoDecoder::RequestBufferDecode, this));
+  gvd_loop_proxy_->PostTask(FROM_HERE, base::Bind(
+      &DemuxerStream::Read, demuxer_stream_.get(),
+      base::Bind(&GpuVideoDecoder::RequestBufferDecode, this)));
 }
 
 void GpuVideoDecoder::NotifyFlushDone() {
   if (!gvd_loop_proxy_->BelongsToCurrentThread()) {
     gvd_loop_proxy_->PostTask(FROM_HERE, base::Bind(
         &GpuVideoDecoder::NotifyFlushDone, this));
     return;
   }
   DCHECK_EQ(state_, kDrainingDecoder);
   state_ = kDecoderDrained;
@@ skipping 36 matching lines @@
 
   error_occured_ = true;
 
   if (!pending_read_cb_.is_null()) {
     base::ResetAndReturn(&pending_read_cb_).Run(kDecodeError, NULL);
     return;
   }
 }
 
 }  // namespace media