Change default timestamp to 64 bits in all webrtc directories.

webrtc/libjingle/xmpp/pingtask.cc

 /*
  *  Copyright 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 39 matching lines @@
   if (ping_period_millis_ < ping_timeout_millis_) {
     LOG(LS_ERROR) << "ping_period_millis should be >= ping_timeout_millis";
     return STATE_ERROR;
   }
   const buzz::XmlElement* stanza = NextStanza();
   if (stanza != NULL) {
     // Received a ping response of some sort (don't care what it is).
     ping_response_deadline_ = 0;
   }
 
-  uint32_t now = rtc::Time();
+  int64_t now = rtc::TimeMillis();
 
   // If the ping timed out, signal.
   if (ping_response_deadline_ != 0 && now >= ping_response_deadline_) {
     SignalTimeout();
     return STATE_ERROR;
   }
 
   // Send a ping if it's time.
   if (now >= next_ping_time_) {
     std::unique_ptr<buzz::XmlElement> stanza(
@@ skipping 13 matching lines @@
   return STATE_BLOCKED;
 }
 
 void PingTask::OnMessage(rtc::Message* msg) {
   // Get the task manager to run this task so we can send a ping or signal or
   // process a ping response.
   Wake();
 }
 
 } // namespace buzz