Fix instances of passing raw pointers to RefCounted objects in tasks.

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 1752a4d8a84c58d325aac6e8edd4de9a4fe217da..76d3a019c1f893dcdedb19d3075026ecff1e4423 100644
--- a/media/filters/ffmpeg_demuxer.cc
+++ b/media/filters/ffmpeg_demuxer.cc
@@ -312,8 +312,11 @@ void FFmpegDemuxer::OnAudioRendererDisabled() {
 
 void FFmpegDemuxer::Initialize(DataSource* data_source,
                                FilterCallback* callback) {
-  message_loop()->PostTask(FROM_HERE,
-      NewRunnableMethod(this, &FFmpegDemuxer::InitializeTask, data_source,
+  message_loop()->PostTask(
+      FROM_HERE,
+      NewRunnableMethod(this,
+                        &FFmpegDemuxer::InitializeTask,
+                        make_scoped_refptr(data_source),
                         callback));
 }