Replace scoped_ptr with unique_ptr in talk/

talk/app/webrtc/objc/RTCPeerConnection.mm

 /*
  * libjingle
  * Copyright 2013 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 27 matching lines @@
 #import "RTCMediaConstraints+Internal.h"
 #import "RTCMediaStream+Internal.h"
 #import "RTCMediaStreamTrack+Internal.h"
 #import "RTCPeerConnectionObserver.h"
 #import "RTCSessionDescription+Internal.h"
 #import "RTCSessionDescription.h"
 #import "RTCSessionDescriptionDelegate.h"
 #import "RTCStatsDelegate.h"
 #import "RTCStatsReport+Internal.h"
 
+#include <memory>
+
 #include "webrtc/api/jsep.h"
 
 NSString* const kRTCSessionDescriptionDelegateErrorDomain = @"RTCSDPError";
 int const kRTCSessionDescriptionDelegateErrorCode = -1;
 
 namespace webrtc {
 
 class RTCCreateSessionDescriptionObserver
     : public CreateSessionDescriptionObserver {
  public:
@@ skipping 76 matching lines @@
   }
 
  private:
   id<RTCStatsDelegate> _delegate;
   RTCPeerConnection* _peerConnection;
 };
 }
 
 @implementation RTCPeerConnection {
   NSMutableArray* _localStreams;
-  rtc::scoped_ptr<webrtc::RTCPeerConnectionObserver> _observer;
+  std::unique_ptr<webrtc::RTCPeerConnectionObserver> _observer;
   rtc::scoped_refptr<webrtc::PeerConnectionInterface> _peerConnection;
 }
 
 - (BOOL)addICECandidate:(RTCICECandidate*)candidate {
-  rtc::scoped_ptr<const webrtc::IceCandidateInterface> iceCandidate(
+  std::unique_ptr<const webrtc::IceCandidateInterface> iceCandidate(
       candidate.candidate);
   return self.peerConnection->AddIceCandidate(iceCandidate.get());
 }
 
 - (BOOL)addStream:(RTCMediaStream*)stream {
   BOOL ret = self.peerConnection->AddStream(stream.mediaStream);
   if (!ret) {
     return NO;
   }
   [_localStreams addObject:stream];
@@ skipping 136 matching lines @@
     _delegate = delegate;
   }
   return self;
 }
 
 - (rtc::scoped_refptr<webrtc::PeerConnectionInterface>)peerConnection {
   return _peerConnection;
 }
 
 @end