Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/formats/mp4/box_definitions.h

 // 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.
 
 #ifndef MEDIA_FORMATS_MP4_BOX_DEFINITIONS_H_
 #define MEDIA_FORMATS_MP4_BOX_DEFINITIONS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 215 matching lines @@
   uint8_t avc_level;
   uint8_t length_size;
 
   typedef std::vector<uint8_t> SPS;
   typedef std::vector<uint8_t> PPS;
 
   std::vector<SPS> sps_list;
   std::vector<PPS> pps_list;
 
  private:
-  bool ParseInternal(BufferReader* reader,
-                     const scoped_refptr<MediaLog>& media_log);
+  bool ParseInternal(BufferReader* reader, MediaLog* media_log);
 };
 
 struct MEDIA_EXPORT VPCodecConfigurationRecord : Box {
   DECLARE_BOX_METHODS(VPCodecConfigurationRecord);
 
   VideoCodecProfile profile;
 };
 
 struct MEDIA_EXPORT PixelAspectRatioBox : Box {
   DECLARE_BOX_METHODS(PixelAspectRatioBox);
@@ skipping 249 matching lines @@
   std::vector<TrackFragment> tracks;
   std::vector<ProtectionSystemSpecificHeader> pssh;
 };
 
 #undef DECLARE_BOX
 
 }  // namespace mp4
 }  // namespace media
 
 #endif  // MEDIA_FORMATS_MP4_BOX_DEFINITIONS_H_