Build WebRTC with data channel only.

webrtc/media/base/h264_profile_level_id.h

Index: webrtc/media/base/h264_profile_level_id.h
diff --git a/webrtc/common_video/h264/profile_level_id.h b/webrtc/media/base/h264_profile_level_id.h
similarity index 94%
copy from webrtc/common_video/h264/profile_level_id.h
copy to webrtc/media/base/h264_profile_level_id.h
index 20147bb66e379841913c689bbb9236c992abfbea..de5eedb16f40cba5dc6b34ab196aec2d5f038f83 100644
--- a/webrtc/common_video/h264/profile_level_id.h
+++ b/webrtc/media/base/h264_profile_level_id.h
@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
+ *  Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
@@ -8,8 +8,8 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#ifndef WEBRTC_COMMON_VIDEO_H264_PROFILE_LEVEL_ID_H_
-#define WEBRTC_COMMON_VIDEO_H264_PROFILE_LEVEL_ID_H_
+#ifndef WEBRTC_MEDIA_BASE_H264_PROFILE_LEVEL_ID_H_
+#define WEBRTC_MEDIA_BASE_H264_PROFILE_LEVEL_ID_H_
 
 #include <map>
 #include <string>
@@ -99,4 +99,4 @@ void GenerateProfileLevelIdForAnswer(
 }  // namespace H264
 }  // namespace webrtc
 
-#endif  // WEBRTC_COMMON_VIDEO_H264_PROFILE_LEVEL_ID_H_
+#endif  // WEBRTC_MEDIA_BASE_H264_PROFILE_LEVEL_ID_H_