Convert //chromecast from scoped_ptr to std::unique_ptr

chromecast/media/cma/backend/media_pipeline_backend_wrapper.cc

 // Copyright 2016 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/backend/media_pipeline_backend_wrapper.h"
 
 #include "base/logging.h"
 #include "chromecast/media/cma/backend/media_pipeline_backend_manager.h"
 
 namespace chromecast {
 namespace media {
 
 MediaPipelineBackendWrapper::MediaPipelineBackendWrapper(
-    scoped_ptr<MediaPipelineBackend> backend,
+    std::unique_ptr<MediaPipelineBackend> backend,
     int stream_type,
     float stream_type_volume,
     MediaPipelineBackendManager* backend_manager)
     : backend_(std::move(backend)),
       stream_type_(stream_type),
       audio_decoder_wrapper_(nullptr),
       stream_type_volume_(stream_type_volume),
       is_initialized_(false),
       backend_manager_(backend_manager) {
   DCHECK(backend_);
@@ skipping 59 matching lines @@
 
 void MediaPipelineBackendWrapper::SetStreamTypeVolume(
     float stream_type_volume) {
   stream_type_volume_ = stream_type_volume;
   if (is_initialized_ && audio_decoder_wrapper_)
     audio_decoder_wrapper_->SetStreamTypeVolume(stream_type_volume_);
 }
 
 }  // namespace media
 }  // namespace chromecast