Update talk to 58127566 together with

https://webrtc-codereview.appspot.com/5309005/.

R=mallinath@webrtc.org, niklas.enbom@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/5719004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5277 4adac7df-926f-26a2-2b94-8c16560cd09d

talk/base/timeutils.cc

@@ -94,6 +94,10 @@ uint32 Time() {
   return static_cast<uint32>(TimeNanos() / kNumNanosecsPerMillisec);
 }
 
+uint64 TimeMicros() {
+  return static_cast<uint64>(TimeNanos() / kNumNanosecsPerMicrosec);
+}
+
 #if defined(WIN32)
 static const uint64 kFileTimeToUnixTimeEpochOffset = 116444736000000000ULL;