Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/test/pipeline_integration_test_base.h

 // Copyright (c) 2012 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_TEST_PIPELINE_INTEGRATION_TEST_BASE_H_
 #define MEDIA_TEST_PIPELINE_INTEGRATION_TEST_BASE_H_
 
 #include <stdint.h>
 #include <memory>
 
@@ skipping 109 matching lines @@
   base::TimeDelta GetAudioTime();
 
   // Sets a callback to handle EME "encrypted" event. Must be called to test
   // potentially encrypted media.
   void set_encrypted_media_init_data_cb(
       const Demuxer::EncryptedMediaInitDataCB& encrypted_media_init_data_cb) {
     encrypted_media_init_data_cb_ = encrypted_media_init_data_cb;
   }
 
  protected:
+  MediaLog media_log_;
   base::MessageLoop message_loop_;
   base::MD5Context md5_context_;
   bool hashing_enabled_;
   bool clockless_playback_;
 
   // TaskScheduler is used only for FFmpegDemuxer.
   std::unique_ptr<base::test::ScopedTaskScheduler> task_scheduler_;
   std::unique_ptr<Demuxer> demuxer_;
   std::unique_ptr<DataSource> data_source_;
   std::unique_ptr<PipelineImpl> pipeline_;
@@ skipping 63 matching lines @@
                     const AddTextTrackDoneCB& done_cb));
   MOCK_METHOD0(OnWaitingForDecryptionKey, void(void));
   MOCK_METHOD1(OnVideoNaturalSizeChange, void(const gfx::Size&));
   MOCK_METHOD1(OnVideoOpacityChange, void(bool));
   MOCK_METHOD0(OnVideoAverageKeyframeDistanceUpdate, void());
 };
 
 }  // namespace media
 
 #endif  // MEDIA_TEST_PIPELINE_INTEGRATION_TEST_BASE_H_