Move optional.h to webrtc/api/

webrtc/p2p/base/jseptransport.h

 /*
  *  Copyright 2004 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_P2P_BASE_JSEPTRANSPORT_H_
 #define WEBRTC_P2P_BASE_JSEPTRANSPORT_H_
 
 #include <map>
 #include <memory>
 #include <string>
 #include <vector>
 
+#include "webrtc/api/optional.h"
 #include "webrtc/p2p/base/candidate.h"
 #include "webrtc/p2p/base/p2pconstants.h"
 #include "webrtc/p2p/base/sessiondescription.h"
 #include "webrtc/p2p/base/transportinfo.h"
 #include "webrtc/rtc_base/constructormagic.h"
 #include "webrtc/rtc_base/messagequeue.h"
-#include "webrtc/rtc_base/optional.h"
 #include "webrtc/rtc_base/rtccertificate.h"
 #include "webrtc/rtc_base/sigslot.h"
 #include "webrtc/rtc_base/sslstreamadapter.h"
 
 namespace cricket {
 
 class DtlsTransportInternal;
 enum class IceCandidatePairState;
 
 typedef std::vector<Candidate> Candidates;
@@ skipping 338 matching lines @@
 
   // Candidate component => DTLS channel
   std::map<int, DtlsTransportInternal*> channels_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(JsepTransport);
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_JSEPTRANSPORT_H_