Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/filters/decoder_selector.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_FILTERS_DECODER_SELECTOR_H_
 #define MEDIA_FILTERS_DECODER_SELECTOR_H_
 
 #include <memory>
 
 #include "base/callback.h"
@@ skipping 38 matching lines @@
   // The caller should call DecryptingDemuxerStream::Reset() before
   // calling Decoder::Reset() to release any pending decryption or read.
   typedef base::Callback<void(std::unique_ptr<Decoder>,
                               std::unique_ptr<DecryptingDemuxerStream>)>
       SelectDecoderCB;
 
   // |decoders| contains the Decoders to use when initializing.
   DecoderSelector(
       const scoped_refptr<base::SingleThreadTaskRunner>& message_loop,
       ScopedVector<Decoder> decoders,
-      const scoped_refptr<MediaLog>& media_log);
+      MediaLog* media_log);
 
   // Aborts pending Decoder selection and fires |select_decoder_cb| with
   // NULL and NULL immediately if it's pending.
   ~DecoderSelector();
 
   // Initializes and selects the first Decoder that can decode the |stream|.
   // The selected Decoder (and DecryptingDemuxerStream) is returned via
   // the |select_decoder_cb|.
   // Notes:
   // 1. This must not be called again before |select_decoder_cb| is run.
@@ skipping 14 matching lines @@
   void DecryptingDecoderInitDone(bool success);
 #endif
   void InitializeDecryptingDemuxerStream();
   void DecryptingDemuxerStreamInitDone(PipelineStatus status);
   void InitializeDecoder();
   void DecoderInitDone(bool success);
   void ReturnNullDecoder();
 
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   ScopedVector<Decoder> decoders_;
-  scoped_refptr<MediaLog> media_log_;
+  MediaLog* media_log_;
 
   StreamTraits* traits_;
 
   // Could be the |stream| passed in SelectDecoder, or |decrypted_stream_| when
   // a DecryptingDemuxerStream is selected.
   DemuxerStream* input_stream_;
 
   CdmContext* cdm_context_;
   SelectDecoderCB select_decoder_cb_;
   typename Decoder::OutputCB output_cb_;
@@ skipping 10 matching lines @@
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(DecoderSelector);
 };
 
 typedef DecoderSelector<DemuxerStream::VIDEO> VideoDecoderSelector;
 typedef DecoderSelector<DemuxerStream::AUDIO> AudioDecoderSelector;
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_DECODER_SELECTOR_H_