Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/formats/mp4/track_run_iterator.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_TRACK_RUN_ITERATOR_H_
 #define MEDIA_FORMATS_MP4_TRACK_RUN_ITERATOR_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 19 matching lines @@
 DecodeTimestamp MEDIA_EXPORT DecodeTimestampFromRational(int64_t numer,
                                                          int64_t denom);
 
 struct SampleInfo;
 struct TrackRunInfo;
 
 class MEDIA_EXPORT TrackRunIterator {
  public:
   // Create a new TrackRunIterator. A reference to |moov| will be retained for
   // the lifetime of this object.
-  TrackRunIterator(const Movie* moov, const scoped_refptr<MediaLog>& media_log);
+  TrackRunIterator(const Movie* moov, MediaLog* media_log);
   ~TrackRunIterator();
 
   // Sets up the iterator to handle all the runs from the current fragment.
   bool Init(const MovieFragment& moof);
 
   // Returns true if the properties of the current run or sample are valid.
   bool IsRunValid() const;
   bool IsSampleValid() const;
 
   // Advance the properties to refer to the next run or sample. Requires that
@@ skipping 47 matching lines @@
 
   // Sample encryption information.
   bool IsSampleEncrypted(size_t sample_index) const;
   uint8_t GetIvSize(size_t sample_index) const;
   const std::vector<uint8_t>& GetKeyId(size_t sample_index) const;
 #if BUILDFLAG(ENABLE_CBCS_ENCRYPTION_SCHEME)
   bool ApplyConstantIv(size_t sample_index, SampleEncryptionEntry* entry) const;
 #endif
 
   const Movie* moov_;
-  scoped_refptr<MediaLog> media_log_;
+  MediaLog* media_log_;
 
   std::vector<TrackRunInfo> runs_;
   std::vector<TrackRunInfo>::const_iterator run_itr_;
   std::vector<SampleInfo>::const_iterator sample_itr_;
 
   int64_t sample_dts_;
   int64_t sample_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(TrackRunIterator);
 };
 
 }  // namespace mp4
 }  // namespace media
 
 #endif  // MEDIA_FORMATS_MP4_TRACK_RUN_ITERATOR_H_