Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/filters/video_renderer_algorithm.cc

 // Copyright 2015 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/filters/video_renderer_algorithm.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "media/base/media_log.h"
@@ skipping 21 matching lines @@
 VideoRendererAlgorithm::ReadyFrame::~ReadyFrame() {
 }
 
 bool VideoRendererAlgorithm::ReadyFrame::operator<(
     const ReadyFrame& other) const {
   return frame->timestamp() < other.frame->timestamp();
 }
 
 VideoRendererAlgorithm::VideoRendererAlgorithm(
     const TimeSource::WallClockTimeCB& wall_clock_time_cb,
-    scoped_refptr<MediaLog> media_log)
-    : media_log_(std::move(media_log)),
+    MediaLog* media_log)
+    : media_log_(media_log),
       cadence_estimator_(base::TimeDelta::FromSeconds(
           kMinimumAcceptableTimeBetweenGlitchesSecs)),
       wall_clock_time_cb_(wall_clock_time_cb),
       frame_duration_calculator_(kMovingAverageSamples),
       frame_dropping_disabled_(false) {
   DCHECK(!wall_clock_time_cb_.is_null());
   Reset();
 }
 
 VideoRendererAlgorithm::~VideoRendererAlgorithm() {}
@@ skipping 690 matching lines @@
     const ReadyFrame& frame = frame_queue_[i];
     if (frame.render_count < frame.ideal_render_count &&
         (frame.end_time.is_null() || frame.end_time > minimum_start_time)) {
       ++renderable_frame_count;
     }
   }
   return renderable_frame_count;
 }
 
 }  // namespace media