Switching some interfaces to use std::unique_ptr<>.

webrtc/sdk/objc/Framework/Classes/RTCAVFoundationVideoSource.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 "RTCAVFoundationVideoSource+Private.h"
 
 #import "RTCMediaConstraints+Private.h"
 #import "RTCPeerConnectionFactory+Private.h"
 #import "RTCVideoSource+Private.h"
 
 @implementation RTCAVFoundationVideoSource {
   webrtc::AVFoundationVideoCapturer *_capturer;
 }
 
 - (instancetype)initWithFactory:(RTCPeerConnectionFactory *)factory
                     constraints:(RTCMediaConstraints *)constraints {
   NSParameterAssert(factory);
   // We pass ownership of the capturer to the source, but since we own
   // the source, it should be ok to keep a raw pointer to the
   // capturer.
   _capturer = new webrtc::AVFoundationVideoCapturer();
   rtc::scoped_refptr<webrtc::VideoTrackSourceInterface> source =
       factory.nativeFactory->CreateVideoSource(
-          _capturer, constraints.nativeConstraints.get());
+          std::unique_ptr<cricket::VideoCapturer>(_capturer),
+          constraints.nativeConstraints.get());
 
   return [super initWithNativeVideoSource:source];
 }
 
 - (void)adaptOutputFormatToWidth:(int)width
                           height:(int)height
                              fps:(int)fps {
   self.capturer->AdaptOutputFormat(width, height, fps);
 }
 
@@ skipping 11 matching lines @@
 
 - (AVCaptureSession *)captureSession {
   return self.capturer->GetCaptureSession();
 }
 
 - (webrtc::AVFoundationVideoCapturer *)capturer {
   return _capturer;
 }
 
 @end