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

webrtc/pc/channelmanager.h

Index: webrtc/pc/channelmanager.h
diff --git a/webrtc/pc/channelmanager.h b/webrtc/pc/channelmanager.h
index 879ea4d39b8194e27166b4379fbf20b87c8c68cd..052c363486aa0708bcc0bfcca70fe360269d5b1c 100644
--- a/webrtc/pc/channelmanager.h
+++ b/webrtc/pc/channelmanager.h
@@ -38,13 +38,12 @@ class VoiceChannel;
 class ChannelManager {
  public:
   // For testing purposes. Allows the media engine and data media
-  // engine and dev manager to be mocks.  The ChannelManager takes
-  // ownership of these objects.
-  ChannelManager(MediaEngineInterface* me,
-                 DataEngineInterface* dme,
+  // engine and dev manager to be mocks.
+  ChannelManager(std::unique_ptr<MediaEngineInterface> me,
+                 std::unique_ptr<DataEngineInterface> dme,
                  rtc::Thread* worker_and_network);
   // Same as above, but gives an easier default DataEngine.
-  ChannelManager(MediaEngineInterface* me,
+  ChannelManager(std::unique_ptr<MediaEngineInterface> me,
                  rtc::Thread* worker,
                  rtc::Thread* network);
   ~ChannelManager();
@@ -157,8 +156,8 @@ class ChannelManager {
   typedef std::vector<VideoChannel*> VideoChannels;
   typedef std::vector<RtpDataChannel*> RtpDataChannels;
 
-  void Construct(MediaEngineInterface* me,
-                 DataEngineInterface* dme,
+  void Construct(std::unique_ptr<MediaEngineInterface> me,
+                 std::unique_ptr<DataEngineInterface> dme,
                  rtc::Thread* worker_thread,
                  rtc::Thread* network_thread);
   bool InitMediaEngine_w();