Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/blink/webmediaplayer_params.cc

 // 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.
 
 #include "media/blink/webmediaplayer_params.h"
 
 #include "base/single_thread_task_runner.h"
 #include "base/task_runner.h"
 #include "media/base/audio_renderer_sink.h"
-#include "media/base/media_log.h"
 
 namespace media {
 
 WebMediaPlayerParams::WebMediaPlayerParams(
+    std::unique_ptr<MediaLog> media_log,
     const DeferLoadCB& defer_load_cb,
     const scoped_refptr<SwitchableAudioRendererSink>& audio_renderer_sink,
-    const scoped_refptr<MediaLog>& media_log,
     const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
     const scoped_refptr<base::TaskRunner>& worker_task_runner,
     const scoped_refptr<base::SingleThreadTaskRunner>& compositor_task_runner,
     const Context3DCB& context_3d_cb,
     const AdjustAllocatedMemoryCB& adjust_allocated_memory_cb,
     blink::WebContentDecryptionModule* initial_cdm,
     SurfaceManager* surface_manager,
     base::WeakPtr<MediaObserver> media_observer,
     base::TimeDelta max_keyframe_distance_to_disable_background_video,
     base::TimeDelta max_keyframe_distance_to_disable_background_video_mse,
     bool enable_instant_source_buffer_gc,
     bool allow_suspend,
     bool embedded_media_experience_enabled)
     : defer_load_cb_(defer_load_cb),
       audio_renderer_sink_(audio_renderer_sink),
-      media_log_(media_log),
+      media_log_(std::move(media_log)),
       media_task_runner_(media_task_runner),
       worker_task_runner_(worker_task_runner),
       compositor_task_runner_(compositor_task_runner),
       context_3d_cb_(context_3d_cb),
       adjust_allocated_memory_cb_(adjust_allocated_memory_cb),
       initial_cdm_(initial_cdm),
       surface_manager_(surface_manager),
       media_observer_(media_observer),
       max_keyframe_distance_to_disable_background_video_(
           max_keyframe_distance_to_disable_background_video),
       max_keyframe_distance_to_disable_background_video_mse_(
           max_keyframe_distance_to_disable_background_video_mse),
       enable_instant_source_buffer_gc_(enable_instant_source_buffer_gc),
       allow_suspend_(allow_suspend),
       embedded_media_experience_enabled_(embedded_media_experience_enabled) {}
 
 WebMediaPlayerParams::~WebMediaPlayerParams() {}
 
 }  // namespace media