Fixes use-after-free in MojoDemuxerStreamImpl.

media/mojo/clients/mojo_demuxer_stream_impl.h

Index: media/mojo/clients/mojo_demuxer_stream_impl.h
diff --git a/media/mojo/clients/mojo_demuxer_stream_impl.h b/media/mojo/clients/mojo_demuxer_stream_impl.h
index 0d3794897cbf125430187a6820e480af4154a58f..462565696aae411bb9a189d51b30bb06384c5ef4 100644
--- a/media/mojo/clients/mojo_demuxer_stream_impl.h
+++ b/media/mojo/clients/mojo_demuxer_stream_impl.h
@@ -9,7 +9,7 @@
 #include "base/memory/weak_ptr.h"
 #include "media/base/demuxer_stream.h"
 #include "media/mojo/interfaces/demuxer_stream.mojom.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
+#include "mojo/public/cpp/bindings/binding.h"
 
 namespace media {
 class DemuxerStream;
@@ -36,7 +36,7 @@ class MojoDemuxerStreamImpl : public mojom::DemuxerStream {
                      media::DemuxerStream::Status status,
                      const scoped_refptr<media::DecoderBuffer>& buffer);
 
-  mojo::StrongBinding<mojom::DemuxerStream> binding_;
+  mojo::Binding<mojom::DemuxerStream> binding_;
 
   // See constructor.  We do not own |stream_|.
   media::DemuxerStream* stream_;