Moved transport_adapter.h/.cc from call/ to video/ dir to remove circular dependency

webrtc/call/transport_adapter.h

-/*
- *  Copyright (c) 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_CALL_TRANSPORT_ADAPTER_H_
-#define WEBRTC_CALL_TRANSPORT_ADAPTER_H_
-
-#include "webrtc/common_types.h"
-#include "webrtc/system_wrappers/include/atomic32.h"
-#include "webrtc/transport.h"
-
-namespace webrtc {
-namespace internal {
-
-class TransportAdapter : public Transport {
- public:
-  explicit TransportAdapter(Transport* transport);
-
-  bool SendRtp(const uint8_t* packet,
-               size_t length,
-               const PacketOptions& options) override;
-  bool SendRtcp(const uint8_t* packet, size_t length) override;
-
-  void Enable();
-  void Disable();
-
- private:
-  Transport *transport_;
-  Atomic32 enabled_;
-};
-}  // namespace internal
-}  // namespace webrtc
-
-#endif  // WEBRTC_CALL_TRANSPORT_ADAPTER_H_