Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/formats/mpeg/mpeg1_audio_stream_parser.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/formats/mpeg/mpeg1_audio_stream_parser.h"
 
 #include "media/base/media_log.h"
 
 namespace media {
 
@@ skipping 70 matching lines @@
 // indicate a frame is silent metadata frame.  Values taken from FFmpeg.
 static const int kXingHeaderMap[2][2] = {{32, 17}, {17, 9}};
 
 // Frame header field constants.
 static const int kBitrateFree = 0;
 static const int kBitrateBad = 0xf;
 static const int kSampleRateReserved = 3;
 static const int kCodecDelay = 529;
 
 // static
-bool MPEG1AudioStreamParser::ParseHeader(
-    const scoped_refptr<MediaLog>& media_log,
-    const uint8_t* data,
-    Header* header) {
+bool MPEG1AudioStreamParser::ParseHeader(MediaLog* media_log,
+                                         const uint8_t* data,
+                                         Header* header) {
   BitReader reader(data, kHeaderSize);
   int sync;
   int version;
   int layer;
   int is_protected;
   int bitrate_index;
   int sample_rate_index;
   int has_padding;
   int is_private;
   int channel_mode;
@@ skipping 178 matching lines @@
     if (metadata_frame)
       *metadata_frame = true;
     return header_bytes_read + reader.bits_read() / 8;
   }
 
   // If it wasn't a XING frame, just return the number consumed bytes.
   return header_bytes_read;
 }
 
 }  // namespace media