Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/renderers/default_renderer_factory.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 "media/renderers/default_renderer_factory.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
@@ skipping 14 matching lines @@
 #endif
 #endif
 
 #if !defined(MEDIA_DISABLE_LIBVPX)
 #include "media/filters/vpx_video_decoder.h"
 #endif
 
 namespace media {
 
 DefaultRendererFactory::DefaultRendererFactory(
-    const scoped_refptr<MediaLog>& media_log,
+    MediaLog* media_log,
     DecoderFactory* decoder_factory,
     const GetGpuFactoriesCB& get_gpu_factories_cb)
     : media_log_(media_log),
       decoder_factory_(decoder_factory),
       get_gpu_factories_cb_(get_gpu_factories_cb) {}
 
 DefaultRendererFactory::~DefaultRendererFactory() {
 }
 
 ScopedVector<AudioDecoder> DefaultRendererFactory::CreateAudioDecoders(
@@ skipping 83 matching lines @@
       base::Bind(&DefaultRendererFactory::CreateVideoDecoders,
                  base::Unretained(this), media_task_runner, request_surface_cb,
                  gpu_factories),
       true, gpu_factories, media_log_));
 
   return base::MakeUnique<RendererImpl>(
       media_task_runner, std::move(audio_renderer), std::move(video_renderer));
 }
 
 }  // namespace media