Replace scoped_ptr with unique_ptr everywhere

webrtc/sdk/objc/Framework/Classes/RTCIceCandidate+Private.h

 /*
  *  Copyright 2015 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.
  */
 
 #import "WebRTC/RTCIceCandidate.h"
 
+#include <memory>
+
 #include "webrtc/api/jsep.h"
 #include "webrtc/base/scoped_ptr.h"
 
 NS_ASSUME_NONNULL_BEGIN
 
 @interface RTCIceCandidate ()
 
 /**
  * The native IceCandidateInterface representation of this RTCIceCandidate
  * object. This is needed to pass to the underlying C++ APIs.
  */
 @property(nonatomic, readonly)
-    rtc::scoped_ptr<webrtc::IceCandidateInterface> nativeCandidate;
+    std::unique_ptr<webrtc::IceCandidateInterface> nativeCandidate;
 
 /**
  * Initialize an RTCIceCandidate from a native IceCandidateInterface. No
  * ownership is taken of the native candidate.
  */
 - (instancetype)initWithNativeCandidate:
     (const webrtc::IceCandidateInterface *)candidate;
 
 @end
 
 NS_ASSUME_NONNULL_END