Using 64-bit timestamp in webrtc/p2p

webrtc/base/timeutils.cc

Index: webrtc/base/timeutils.cc
diff --git a/webrtc/base/timeutils.cc b/webrtc/base/timeutils.cc
index b7803aea10bbfef842c88f4f7f371baa770fa257..5a84e8a9f6ada790a35c9944fe6859a7fb5fb400 100644
--- a/webrtc/base/timeutils.cc
+++ b/webrtc/base/timeutils.cc
@@ -84,6 +84,10 @@ uint32_t Time() {
   return static_cast<uint32_t>(TimeNanos() / kNumNanosecsPerMillisec);
 }
 
+int64_t Time64() {
+  return static_cast<int64_t>(TimeNanos() / kNumNanosecsPerMillisec);
+}
+
 uint64_t TimeMicros() {
   return static_cast<uint64_t>(TimeNanos() / kNumNanosecsPerMicrosec);
 }
@@ -192,6 +196,10 @@ int32_t TimeDiff(uint32_t later, uint32_t earlier) {
 #endif
 }
 
+int64_t TimeDiff64(int64_t later, int64_t earlier) {
+  return later - earlier;
+}
+
 TimestampWrapAroundHandler::TimestampWrapAroundHandler()
     : last_ts_(0), num_wrap_(-1) {}