Using 64-bit timestamp in webrtc/p2p

webrtc/p2p/base/stunrequest.h

Index: webrtc/p2p/base/stunrequest.h
diff --git a/webrtc/p2p/base/stunrequest.h b/webrtc/p2p/base/stunrequest.h
index 4217a81f1f5833b15a82ba2b598d04e968a1e846..f6d216d1f714eca780f8d9b3574f616509bbc482 100644
--- a/webrtc/p2p/base/stunrequest.h
+++ b/webrtc/p2p/base/stunrequest.h
@@ -101,7 +101,7 @@ class StunRequest : public rtc::MessageHandler {
   const StunMessage* msg() const;
 
   // Time elapsed since last send (in ms)
-  uint32_t Elapsed() const;
+  int Elapsed() const;
 
  protected:
   int count_;
@@ -129,7 +129,7 @@ class StunRequest : public rtc::MessageHandler {
 
   StunRequestManager* manager_;
   StunMessage* msg_;
-  uint32_t tstamp_;
+  int64_t tstamp_;
 
   friend class StunRequestManager;
 };