Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/blink/webmediasource_impl.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 "media/blink/webmediasource_impl.h"
 
 #include "base/guid.h"
 #include "media/base/mime_util.h"
 #include "media/blink/websourcebuffer_impl.h"
 #include "media/filters/chunk_demuxer.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 
 using ::blink::WebString;
 using ::blink::WebMediaSource;
 
 namespace media {
 
 #define STATIC_ASSERT_MATCHING_STATUS_ENUM(webkit_name, chromium_name) \
   static_assert(static_cast<int>(WebMediaSource::webkit_name) == \
                 static_cast<int>(ChunkDemuxer::chromium_name),  \
                 "mismatching status enum values: " #webkit_name)
 STATIC_ASSERT_MATCHING_STATUS_ENUM(kAddStatusOk, kOk);
 STATIC_ASSERT_MATCHING_STATUS_ENUM(kAddStatusNotSupported, kNotSupported);
 STATIC_ASSERT_MATCHING_STATUS_ENUM(kAddStatusReachedIdLimit, kReachedIdLimit);
 #undef STATIC_ASSERT_MATCHING_STATUS_ENUM
 
-WebMediaSourceImpl::WebMediaSourceImpl(ChunkDemuxer* demuxer,
-                                       const scoped_refptr<MediaLog>& media_log)
-    : demuxer_(demuxer), media_log_(media_log) {
+WebMediaSourceImpl::WebMediaSourceImpl(ChunkDemuxer* demuxer)
+    : demuxer_(demuxer) {
   DCHECK(demuxer_);
 }
 
 WebMediaSourceImpl::~WebMediaSourceImpl() {}
 
 WebMediaSource::AddStatus WebMediaSourceImpl::AddSourceBuffer(
     const blink::WebString& type,
     const blink::WebString& codecs,
     blink::WebSourceBuffer** source_buffer) {
   std::string id = base::GenerateGUID();
@@ skipping 32 matching lines @@
   }
 
   demuxer_->MarkEndOfStream(pipeline_status);
 }
 
 void WebMediaSourceImpl::UnmarkEndOfStream() {
   demuxer_->UnmarkEndOfStream();
 }
 
 }  // namespace media