Revert 96974 - Remove mock_ffmpeg and update media unittests.

media/base/run_all_unittests.cc

Index: media/base/run_all_unittests.cc
===================================================================
--- media/base/run_all_unittests.cc	(revision 96976)
+++ media/base/run_all_unittests.cc	(working copy)
@@ -1,14 +1,9 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2006-2008 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 "base/test/test_suite.h"
-#include "media/base/media.h"
 
 int main(int argc, char** argv) {
-  base::TestSuite suite(argc, argv);
-
-  media::InitializeMediaLibraryForTesting();
-
-  return suite.Run();
+  return base::TestSuite(argc, argv).Run();
 }