Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/base/demuxer_perftest.cc

 // Copyright 2013 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 <stddef.h>
 #include <stdint.h>
 #include <memory>
 
 #include "base/at_exit.h"
 #include "base/bind.h"
@@ skipping 160 matching lines @@
       index = i;
     }
   }
   CHECK_GE(index, 0) << "Couldn't find a stream to read";
   return index;
 }
 
 static void RunDemuxerBenchmark(const std::string& filename) {
   base::FilePath file_path(GetTestDataFilePath(filename));
   base::TimeDelta total_time;
+  MediaLog media_log_;
   for (int i = 0; i < kBenchmarkIterations; ++i) {
     // Setup.
     base::test::ScopedTaskScheduler scoped_task_scheduler;
     DemuxerHostImpl demuxer_host;
     FileDataSource data_source;
     ASSERT_TRUE(data_source.Initialize(file_path));
 
     Demuxer::EncryptedMediaInitDataCB encrypted_media_init_data_cb =
         base::Bind(&OnEncryptedMediaInitData);
     Demuxer::MediaTracksUpdatedCB tracks_updated_cb =
         base::Bind(&OnMediaTracksUpdated);
     FFmpegDemuxer demuxer(base::ThreadTaskRunnerHandle::Get(), &data_source,
                           encrypted_media_init_data_cb, tracks_updated_cb,
-                          new MediaLog());
+                          &media_log_);
 
     {
       base::RunLoop run_loop;
       demuxer.Initialize(
           &demuxer_host,
           base::Bind(&QuitLoopWithStatus, run_loop.QuitClosure()), false);
       run_loop.Run();
     }
 
     StreamReader stream_reader(&demuxer, false);
@@ skipping 26 matching lines @@
 #if BUILDFLAG(USE_PROPRIETARY_CODECS)
   RunDemuxerBenchmark("bear-1280x720.mp4");
   RunDemuxerBenchmark("sfx.mp3");
 #endif
 #if BUILDFLAG(USE_PROPRIETARY_CODECS) && defined(OS_CHROMEOS)
   RunDemuxerBenchmark("bear.avi");
 #endif
 }
 
 }  // namespace media