Properly ref-count the EndOfStream buffer.

media/filters/ffmpeg_demuxer.cc

Index: media/filters/ffmpeg_demuxer.cc
diff --git a/media/filters/ffmpeg_demuxer.cc b/media/filters/ffmpeg_demuxer.cc
index 2860c0cc05a1dcc5b1af4408d0485fea40ec74d4..be52626da5a4e19f3f81f6d0107141501da45d72 100644
--- a/media/filters/ffmpeg_demuxer.cc
+++ b/media/filters/ffmpeg_demuxer.cc
@@ -142,7 +142,7 @@ void FFmpegDemuxerStream::Stop() {
   buffer_queue_.clear();
   for (ReadQueue::iterator it = read_queue_.begin();
        it != read_queue_.end(); ++it) {
-    it->Run(new DataBuffer(0));
+    it->Run(scoped_refptr<Buffer>(new DataBuffer(0)));
   }
   read_queue_.clear();
   stopped_ = true;
@@ -165,7 +165,7 @@ void FFmpegDemuxerStream::Read(const ReadCallback& read_callback) {
   //
   // TODO(scherkus): it would be cleaner if we replied with an error message.
   if (stopped_) {
-    read_callback.Run(new DataBuffer(0));
+    read_callback.Run(scoped_refptr<Buffer>(new DataBuffer(0)));
     return;
   }
 
@@ -194,7 +194,7 @@ void FFmpegDemuxerStream::ReadTask(const ReadCallback& read_callback) {
   //
   // TODO(scherkus): it would be cleaner if we replied with an error message.
   if (stopped_) {
-    read_callback.Run(new DataBuffer(0));
+    read_callback.Run(scoped_refptr<Buffer>(new DataBuffer(0)));
     return;
   }