Remove reference counting from media::Demuxer and friends.

webkit/media/websourcebuffer_impl.cc

 // Copyright (c) 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 "webkit/media/websourcebuffer_impl.h"
 
 #include "media/filters/chunk_demuxer.h"
 
 namespace webkit_media {
 
 WebSourceBufferImpl::WebSourceBufferImpl(
-    const std::string& id, scoped_refptr<media::ChunkDemuxer> demuxer)
+    const std::string& id, media::ChunkDemuxer* demuxer)
     : id_(id),
       demuxer_(demuxer) {
   DCHECK(demuxer_);
 }
 
 WebSourceBufferImpl::~WebSourceBufferImpl() {
   DCHECK(!demuxer_) << "Object destroyed w/o removedFromMediaSource() call";
 }
 
 WebKit::WebTimeRanges WebSourceBufferImpl::buffered() {
@@ skipping 19 matching lines @@
       offset * base::Time::kMicrosecondsPerSecond);
   return demuxer_->SetTimestampOffset(id_, time_offset);
 }
 
 void WebSourceBufferImpl::removedFromMediaSource() {
   demuxer_->RemoveId(id_);
   demuxer_ = NULL;
 }
 
 }  // namespace webkit_media