Replace scoped_ptr with unique_ptr everywhere

webrtc/sdk/objc/Framework/Classes/RTCMediaConstraints.mm

 /*
  *  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 "RTCMediaConstraints+Private.h"
 
 #import "NSString+StdString.h"
 
+#include <memory>
+
 namespace webrtc {
 
 MediaConstraints::~MediaConstraints() {}
 
 MediaConstraints::MediaConstraints() {}
 
 MediaConstraints::MediaConstraints(
     const MediaConstraintsInterface::Constraints& mandatory,
     const MediaConstraintsInterface::Constraints& optional)
     : mandatory_(mandatory), optional_(optional) {}
@@ skipping 30 matching lines @@
 }
 
 - (NSString *)description {
   return [NSString stringWithFormat:@"RTCMediaConstraints:\n%@\n%@",
                                     _mandatory,
                                     _optional];
 }
 
 #pragma mark - Private
 
-- (rtc::scoped_ptr<webrtc::MediaConstraints>)nativeConstraints {
+- (std::unique_ptr<webrtc::MediaConstraints>)nativeConstraints {
   webrtc::MediaConstraintsInterface::Constraints mandatory =
       [[self class] nativeConstraintsForConstraints:_mandatory];
   webrtc::MediaConstraintsInterface::Constraints optional =
       [[self class] nativeConstraintsForConstraints:_optional];
 
   webrtc::MediaConstraints *nativeConstraints =
       new webrtc::MediaConstraints(mandatory, optional);
-  return rtc::scoped_ptr<webrtc::MediaConstraints>(nativeConstraints);
+  return std::unique_ptr<webrtc::MediaConstraints>(nativeConstraints);
 }
 
 + (webrtc::MediaConstraintsInterface::Constraints)
     nativeConstraintsForConstraints:
         (NSDictionary<NSString *, NSString *> *)constraints {
   webrtc::MediaConstraintsInterface::Constraints nativeConstraints;
   for (NSString *key in constraints) {
     NSAssert([key isKindOfClass:[NSString class]],
              @"%@ is not an NSString.", key);
     NSString *value = [constraints objectForKey:key];
     NSAssert([value isKindOfClass:[NSString class]],
              @"%@ is not an NSString.", value);
     nativeConstraints.push_back(webrtc::MediaConstraintsInterface::Constraint(
         key.stdString, value.stdString));
   }
   return nativeConstraints;
 }
 
 @end