Move optional.h to webrtc/api/

webrtc/media/engine/webrtcvideoengine.h

 /*
  *  Copyright (c) 2014 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
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_MEDIA_ENGINE_WEBRTCVIDEOENGINE_H_
 #define WEBRTC_MEDIA_ENGINE_WEBRTCVIDEOENGINE_H_
 
 #include <map>
 #include <memory>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "webrtc/api/call/transport.h"
+#include "webrtc/api/optional.h"
 #include "webrtc/api/video/video_frame.h"
 #include "webrtc/call/call.h"
 #include "webrtc/call/flexfec_receive_stream.h"
 #include "webrtc/call/video_receive_stream.h"
 #include "webrtc/call/video_send_stream.h"
 #include "webrtc/media/base/mediaengine.h"
 #include "webrtc/media/base/videosinkinterface.h"
 #include "webrtc/media/base/videosourceinterface.h"
 #include "webrtc/media/engine/webrtcvideodecoderfactory.h"
 #include "webrtc/media/engine/webrtcvideoencoderfactory.h"
 #include "webrtc/rtc_base/asyncinvoker.h"
 #include "webrtc/rtc_base/criticalsection.h"
 #include "webrtc/rtc_base/networkroute.h"
-#include "webrtc/rtc_base/optional.h"
 #include "webrtc/rtc_base/thread_annotations.h"
 #include "webrtc/rtc_base/thread_checker.h"
 
 namespace webrtc {
 class VideoDecoder;
 class VideoEncoder;
 struct MediaConfig;
 }
 
 namespace rtc {
@@ skipping 485 matching lines @@
   const std::string codec_name_;
   const int max_qp_;
   const int max_framerate_;
   const bool is_screencast_;
   const bool conference_mode_;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_MEDIA_ENGINE_WEBRTCVIDEOENGINE_H_