Removing DataSource from Filter hierarchy

media/base/mock_demuxer_host.cc

Index: media/base/mock_demuxer_host.cc
diff --git a/media/base/mock_demuxer_host.cc b/media/base/mock_demuxer_host.cc
new file mode 100644
index 0000000000000000000000000000000000000000..100787f23af92bd97debd5254a05efe2f28fabb7
--- /dev/null
+++ b/media/base/mock_demuxer_host.cc
@@ -0,0 +1,13 @@
+// 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 "media/base/mock_demuxer_host.h"
+
+namespace media {
+
+MockDemuxerHost::MockDemuxerHost() {}
+
+MockDemuxerHost::~MockDemuxerHost() {}
+
+}  // namespace media