Convert MediaLog from being ref counted to owned by WebMediaPlayer.

content/renderer/media/webmediaplayer_ms.h

 // Copyright 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_WEBMEDIAPLAYER_MS_H_
 #define CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 55 matching lines @@
       public NON_EXPORTED_BASE(media::WebMediaPlayerDelegate::Observer),
       public NON_EXPORTED_BASE(base::SupportsWeakPtr<WebMediaPlayerMS>) {
  public:
   // Construct a WebMediaPlayerMS with reference to the client, and
   // a MediaStreamClient which provides MediaStreamVideoRenderer.
   // |delegate| must not be null.
   WebMediaPlayerMS(
       blink::WebFrame* frame,
       blink::WebMediaPlayerClient* client,
       media::WebMediaPlayerDelegate* delegate,
-      media::MediaLog* media_log,
+      std::unique_ptr<media::MediaLog> media_log,
       std::unique_ptr<MediaStreamRendererFactory> factory,
       scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_,
       scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> media_task_runner,
       scoped_refptr<base::TaskRunner> worker_task_runner,
       media::GpuVideoAcceleratorFactories* gpu_factories,
       const blink::WebString& sink_id,
       const blink::WebSecurityOrigin& security_origin);
 
   ~WebMediaPlayerMS() override;
@@ skipping 139 matching lines @@
   scoped_refptr<MediaStreamVideoRenderer> video_frame_provider_; // Weak
 
   std::unique_ptr<cc_blink::WebLayerImpl> video_weblayer_;
 
   scoped_refptr<MediaStreamAudioRenderer> audio_renderer_; // Weak
   media::SkCanvasVideoRenderer video_renderer_;
 
   bool paused_;
   media::VideoRotation video_rotation_;
 
-  scoped_refptr<media::MediaLog> media_log_;
+  std::unique_ptr<media::MediaLog> media_log_;
 
   std::unique_ptr<MediaStreamRendererFactory> renderer_factory_;
 
   const scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
   const scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_;
   const scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_;
   const scoped_refptr<base::TaskRunner> worker_task_runner_;
   media::GpuVideoAcceleratorFactories* gpu_factories_;
 
   // Used for DCHECKs to ensure methods calls executed in the correct thread.
@@ skipping 14 matching lines @@
   // True if playback should be started upon the next call to OnShown(). Only
   // used on Android.
   bool should_play_upon_shown_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerMS);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_H_