Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/formats/mp4/track_run_iterator.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/mp4/track_run_iterator.h"
 
 #include <algorithm>
 #include <iomanip>
 #include <limits>
 #include <memory>
@@ skipping 76 matching lines @@
   DCHECK((timeb_in_us > 0) ||
          (timea_in_us >= std::numeric_limits<int64_t>::min() - timeb_in_us));
   return base::TimeDelta::FromMicroseconds(timea_in_us + timeb_in_us);
 }
 
 DecodeTimestamp DecodeTimestampFromRational(int64_t numer, int64_t denom) {
   return DecodeTimestamp::FromPresentationTime(
       TimeDeltaFromRational(numer, denom));
 }
 
-TrackRunIterator::TrackRunIterator(const Movie* moov,
-                                   const scoped_refptr<MediaLog>& media_log)
+TrackRunIterator::TrackRunIterator(const Movie* moov, MediaLog* media_log)
     : moov_(moov), media_log_(media_log), sample_offset_(0) {
   CHECK(moov);
 }
 
 TrackRunIterator::~TrackRunIterator() {}
 
 static std::string HexFlags(uint32_t flags) {
   std::stringstream stream;
   stream << std::setfill('0') << std::setw(sizeof(flags)*2) << std::hex
          << flags;
   return stream.str();
 }
 
 static bool PopulateSampleInfo(const TrackExtends& trex,
                                const TrackFragmentHeader& tfhd,
                                const TrackFragmentRun& trun,
                                const int64_t edit_list_offset,
                                const uint32_t i,
                                SampleInfo* sample_info,
                                const SampleDependsOn sdtp_sample_depends_on,
                                bool is_audio,
-                               const scoped_refptr<MediaLog>& media_log) {
+                               MediaLog* media_log) {
   if (i < trun.sample_sizes.size()) {
     sample_info->size = trun.sample_sizes[i];
   } else if (tfhd.default_sample_size > 0) {
     sample_info->size = tfhd.default_sample_size;
   } else {
     sample_info->size = trex.default_sample_size;
   }
 
   if (i < trun.sample_durations.size()) {
     sample_info->duration = trun.sample_durations[i];
@@ skipping 581 matching lines @@
       index == 0 ? track_encryption().default_constant_iv
                  : GetSampleEncryptionInfoEntry(*run_itr_, index)->constant_iv;
   RCHECK(constant_iv != nullptr);
   memcpy(entry->initialization_vector, constant_iv, kInitializationVectorSize);
   return true;
 }
 #endif
 
 }  // namespace mp4
 }  // namespace media