Rename rtc::Time64 --> rtc::TimeMillis.

webrtc/p2p/base/faketransportcontroller.h

Index: webrtc/p2p/base/faketransportcontroller.h
diff --git a/webrtc/p2p/base/faketransportcontroller.h b/webrtc/p2p/base/faketransportcontroller.h
index c099c8cb796e1f132578a39631fe87670b3d434c..58c98624168c08fd288394cff7b2abd0046ce240 100644
--- a/webrtc/p2p/base/faketransportcontroller.h
+++ b/webrtc/p2p/base/faketransportcontroller.h
@@ -207,7 +207,7 @@ class FakeTransportChannel : public TransportChannelImpl,
     } else {
       rtc::Thread::Current()->Send(this, 0, packet);
     }
-    rtc::SentPacket sent_packet(options.packet_id, rtc::Time64());
+    rtc::SentPacket sent_packet(options.packet_id, rtc::TimeMillis());
     SignalSentPacket(this, sent_packet);
     return static_cast<int>(len);
   }