Chromecast: mitigate threading issue between AvPipeline/MediaKeys.

chromecast/media/cma/pipeline/video_pipeline_impl.cc

 // Copyright 2014 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 "chromecast/media/cma/pipeline/video_pipeline_impl.h"
 
 #include "base/bind.h"
 #include "chromecast/media/cma/backend/video_pipeline_device.h"
 #include "chromecast/media/cma/base/buffering_defs.h"
 #include "chromecast/media/cma/base/cma_logging.h"
 #include "chromecast/media/cma/base/coded_frame_provider.h"
 #include "chromecast/media/cma/pipeline/av_pipeline_impl.h"
 #include "media/base/video_decoder_config.h"
 
 namespace chromecast {
 namespace media {
 
 namespace {
 const size_t kMaxVideoFrameSize = 1024 * 1024;
 }
 
 VideoPipelineImpl::VideoPipelineImpl(VideoPipelineDevice* video_device)
     : video_device_(video_device),
       weak_factory_(this) {
   weak_this_ = weak_factory_.GetWeakPtr();
-  av_pipeline_impl_.reset(new AvPipelineImpl(
+  av_pipeline_impl_ = new AvPipelineImpl(
       video_device_,
-      base::Bind(&VideoPipelineImpl::OnUpdateConfig, base::Unretained(this))));
+      base::Bind(&VideoPipelineImpl::OnUpdateConfig, base::Unretained(this)));
 }
 
 VideoPipelineImpl::~VideoPipelineImpl() {
 }
 
 void VideoPipelineImpl::SetCodedFrameProvider(
     scoped_ptr<CodedFrameProvider> frame_provider) {
   av_pipeline_impl_->SetCodedFrameProvider(
       frame_provider.Pass(), kAppVideoBufferSize, kMaxVideoFrameSize);
 }
@@ skipping 126 matching lines @@
   delta_stats.video_frames_dropped =
       current_stats.video_frames_dropped - previous_stats_.video_frames_dropped;
 
   previous_stats_ = current_stats;
 
   video_client_.av_pipeline_client.statistics_cb.Run(delta_stats);
 }
 
 }  // namespace media
 }  // namespace chromecast