Replace scoped_ptr with unique_ptr everywhere

webrtc/sdk/objc/Framework/Classes/RTCMediaConstraints+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/RTCMediaConstraints.h"
 
+#include <memory>
+
 #include "webrtc/api/mediaconstraintsinterface.h"
 #include "webrtc/base/scoped_ptr.h"
 
 namespace webrtc {
 
 class MediaConstraints : public MediaConstraintsInterface {
  public:
   virtual ~MediaConstraints();
   MediaConstraints();
   MediaConstraints(
@@ skipping 11 matching lines @@
 
 
 NS_ASSUME_NONNULL_BEGIN
 
 @interface RTCMediaConstraints ()
 
 /**
  * A MediaConstraints representation of this RTCMediaConstraints object. This is
  * needed to pass to the underlying C++ APIs.
  */
-- (rtc::scoped_ptr<webrtc::MediaConstraints>)nativeConstraints;
+- (std::unique_ptr<webrtc::MediaConstraints>)nativeConstraints;
 
 /** Return a native Constraints object representing these constraints */
 + (webrtc::MediaConstraintsInterface::Constraints)
     nativeConstraintsForConstraints:
         (NSDictionary<NSString *, NSString *> *)constraints;
 
 @end
 
 NS_ASSUME_NONNULL_END