RTCMediaStream[Track]Stats added.

webrtc/api/test/mock_peerconnection.h

Index: webrtc/api/test/mock_peerconnection.h
diff --git a/webrtc/api/test/mock_peerconnection.h b/webrtc/api/test/mock_peerconnection.h
index 50e66185d4c8af5a7022eeb4979e48e87d5b8726..7cc2b0dd9204bf7dd1db25aa6fea4d96de5612cc 100644
--- a/webrtc/api/test/mock_peerconnection.h
+++ b/webrtc/api/test/mock_peerconnection.h
@@ -28,6 +28,10 @@ class MockPeerConnection
   MockPeerConnection()
       : rtc::RefCountedObject<webrtc::PeerConnection>(
             new FakePeerConnectionFactory()) {}
+  MOCK_METHOD0(local_streams,
+               rtc::scoped_refptr<StreamCollectionInterface>());
+  MOCK_METHOD0(remote_streams,
+               rtc::scoped_refptr<StreamCollectionInterface>());
   MOCK_METHOD0(session, WebRtcSession*());
   MOCK_CONST_METHOD0(sctp_data_channels,
                      const std::vector<rtc::scoped_refptr<DataChannel>>&());