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

webrtc/pc/test/peerconnectiontestwrapper.cc

 /*
  *  Copyright 2013 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.
  */
 
@@ skipping 251 matching lines @@
     stream->AddTrack(audio_track);
   }
 
   if (video) {
     // Set max frame rate to 10fps to reduce the risk of the tests to be flaky.
     FakeConstraints constraints = video_constraints;
     constraints.SetMandatoryMaxFrameRate(10);
 
     rtc::scoped_refptr<webrtc::VideoTrackSourceInterface> source =
         peer_connection_factory_->CreateVideoSource(
-            new webrtc::FakePeriodicVideoCapturer(), &constraints);
+            std::unique_ptr<cricket::VideoCapturer>(
+                new webrtc::FakePeriodicVideoCapturer()),
+            &constraints);
     std::string videotrack_label = label + kVideoTrackLabelBase;
     rtc::scoped_refptr<webrtc::VideoTrackInterface> video_track(
         peer_connection_factory_->CreateVideoTrack(videotrack_label, source));
 
     stream->AddTrack(video_track);
   }
   return stream;
 }