Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/renderers/video_renderer_impl.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/renderers/video_renderer_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 16 matching lines @@
 
 namespace media {
 
 VideoRendererImpl::VideoRendererImpl(
     const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
     const scoped_refptr<base::TaskRunner>& worker_task_runner,
     VideoRendererSink* sink,
     const CreateVideoDecodersCB& create_video_decoders_cb,
     bool drop_frames,
     GpuVideoAcceleratorFactories* gpu_factories,
-    const scoped_refptr<MediaLog>& media_log)
+    MediaLog* media_log)
     : task_runner_(media_task_runner),
       sink_(sink),
       sink_started_(false),
       client_(nullptr),
       gpu_memory_buffer_pool_(nullptr),
       media_log_(media_log),
       low_delay_(false),
       received_end_of_stream_(false),
       rendered_end_of_stream_(false),
       state_(kUninitialized),
@@ skipping 687 matching lines @@
 
 void VideoRendererImpl::AttemptReadAndCheckForMetadataChanges(
     VideoPixelFormat pixel_format,
     const gfx::Size& natural_size) {
   base::AutoLock auto_lock(lock_);
   CheckForMetadataChanges(pixel_format, natural_size);
   AttemptRead_Locked();
 }
 
 }  // namespace media