Remove mock_ffmpeg and update media unittests.

media/filters/bitstream_converter.h

Index: media/filters/bitstream_converter.h
diff --git a/media/filters/bitstream_converter.h b/media/filters/bitstream_converter.h
index a1ca3c615424cd58cd4f8eec5f7f697853941f04..738629780f1ae1f32034c7060b4ac2276618fb14 100644
--- a/media/filters/bitstream_converter.h
+++ b/media/filters/bitstream_converter.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -69,11 +69,6 @@ class FFmpegBitstreamConverter : public BitstreamConverter {
   virtual bool ConvertPacket(AVPacket* packet);
 
  private:
-  FRIEND_TEST_ALL_PREFIXES(BitstreamConverterTest, ConvertPacket_FailedFilter);
-  FRIEND_TEST_ALL_PREFIXES(BitstreamConverterTest, ConvertPacket_Success);
-  FRIEND_TEST_ALL_PREFIXES(BitstreamConverterTest,
-                           ConvertPacket_SuccessInPlace);
-
   std::string filter_name_;
   AVBitStreamFilterContext* stream_filter_;
   AVCodecContext* stream_context_;