Checking in media::FFmpegGlue, media::FFmpegDemuxer and tests.

media/filters/ffmpeg_common.cc

+// Copyright (c) 2009 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/filters/ffmpeg_common.h"
+
+namespace media {
+
+const char kFFmpegCodecID[] = "FFmpegCodecID";
+
+namespace mime_type {
+
+const char kFFmpegAudio[] = "audio/x-ffmpeg";
+const char kFFmpegVideo[] = "video/x-ffmpeg";
+
+}  // namespace mime_type
+
+}  // namespace media