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

webrtc/media/engine/webrtcmediaengine.h

 /*
  *  Copyright (c) 2011 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 22 matching lines @@
 class WebRtcMediaEngineFactory {
  public:
   // TODO(ossu): Backwards-compatible interface. Will be deprecated once the
   // audio decoder factory is fully plumbed and used throughout WebRTC.
   // See: crbug.com/webrtc/6000
   static MediaEngineInterface* Create(
       webrtc::AudioDeviceModule* adm,
       WebRtcVideoEncoderFactory* video_encoder_factory,
       WebRtcVideoDecoderFactory* video_decoder_factory);
 
+  // TODO(deadbeef): Change these to return an std::unique_ptr<>, to indicate
+  // that the caller owns the returned object.
   static MediaEngineInterface* Create(
       webrtc::AudioDeviceModule* adm,
       const rtc::scoped_refptr<webrtc::AudioDecoderFactory>&
           audio_decoder_factory,
       WebRtcVideoEncoderFactory* video_encoder_factory,
       WebRtcVideoDecoderFactory* video_decoder_factory);
 
   static MediaEngineInterface* Create(
       webrtc::AudioDeviceModule* adm,
       const rtc::scoped_refptr<webrtc::AudioDecoderFactory>&
@@ skipping 14 matching lines @@
     const std::vector<webrtc::RtpExtension>& extensions,
     bool (*supported)(const std::string&),
     bool filter_redundant_extensions);
 
 webrtc::Call::Config::BitrateConfig GetBitrateConfigForCodec(
     const Codec& codec);
 
 }  // namespace cricket
 
 #endif  // WEBRTC_MEDIA_ENGINE_WEBRTCMEDIAENGINE_H_