Change DemuxerStream::ReadCallback to use ref-counted buffers.

media/filters/ffmpeg_demuxer_unittest.cc

 // Copyright (c) 2011 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 <deque>
 
 #include "base/file_path.h"
 #include "base/path_service.h"
 #include "base/threading/thread.h"
 #include "media/base/filters.h"
@@ skipping 371 matching lines @@
 // is mocked we don't need to pass in object or method pointers.
 class MockReadCallback : public base::RefCountedThreadSafe<MockReadCallback> {
  public:
   MockReadCallback() {}
 
   virtual ~MockReadCallback() {
     OnDelete();
   }
 
   MOCK_METHOD0(OnDelete, void());
-  MOCK_METHOD1(Run, void(Buffer* buffer));
+  MOCK_METHOD1(Run, void(const scoped_refptr<Buffer>& buffer));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockReadCallback);
 };
 
 TEST_F(FFmpegDemuxerTest, Stop) {
   // Tests that calling Read() on a stopped demuxer stream immediately deletes
   // the callback.
   InitializeDemuxer(CreateDataSource("bear-320x240.webm"));
 
@@ skipping 293 matching lines @@
   message_loop_.RunAllPending();
   EXPECT_TRUE(reader->called());
   ValidateBuffer(FROM_HERE, reader->buffer(), 1740, 2436000);
 
   // Manually release the last reference to the buffer and verify it was freed.
   reader->Reset();
   message_loop_.RunAllPending();
 }
 
 }  // namespace media