Create //webrtc/api:libjingle_peerconnection_api + refactorings.

webrtc/api/sctputils.h

-/*
- *  Copyright 2013 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_API_SCTPUTILS_H_
-#define WEBRTC_API_SCTPUTILS_H_
-
-#include <string>
-
-#include "webrtc/api/datachannelinterface.h"
-
-namespace rtc {
-class CopyOnWriteBuffer;
-}  // namespace rtc
-
-namespace webrtc {
-struct DataChannelInit;
-
-// Read the message type and return true if it's an OPEN message.
-bool IsOpenMessage(const rtc::CopyOnWriteBuffer& payload);
-
-bool ParseDataChannelOpenMessage(const rtc::CopyOnWriteBuffer& payload,
-                                 std::string* label,
-                                 DataChannelInit* config);
-
-bool ParseDataChannelOpenAckMessage(const rtc::CopyOnWriteBuffer& payload);
-
-bool WriteDataChannelOpenMessage(const std::string& label,
-                                 const DataChannelInit& config,
-                                 rtc::CopyOnWriteBuffer* payload);
-
-void WriteDataChannelOpenAckMessage(rtc::CopyOnWriteBuffer* payload);
-}  // namespace webrtc
-
-#endif  // WEBRTC_API_SCTPUTILS_H_