Replace scoped_ptr with unique_ptr in webrtc/base/

webrtc/p2p/base/packetsocketfactory.h

 /*
  *  Copyright 2011 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_PACKETSOCKETFACTORY_H_
 #define WEBRTC_P2P_BASE_PACKETSOCKETFACTORY_H_
 
+#include "webrtc/base/constructormagic.h"
 #include "webrtc/base/proxyinfo.h"
 
 namespace rtc {
 
 class AsyncPacketSocket;
 class AsyncResolverInterface;
 
 class PacketSocketFactory {
  public:
   enum Options {
@@ skipping 25 matching lines @@
 
   virtual AsyncResolverInterface* CreateAsyncResolver() = 0;
 
  private:
   RTC_DISALLOW_COPY_AND_ASSIGN(PacketSocketFactory);
 };
 
 }  // namespace rtc
 
 #endif  // WEBRTC_P2P_BASE_PACKETSOCKETFACTORY_H_