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
diff --git a/talk/base/timeutils.h b/talk/base/timeutils.h
index 545e86a..f13c3f2 100644
--- a/talk/base/timeutils.h
+++ b/talk/base/timeutils.h
@@ -42,6 +42,8 @@
     kNumMillisecsPerSec;
 static const int64 kNumNanosecsPerMillisec =  kNumNanosecsPerSec /
     kNumMillisecsPerSec;
+static const int64 kNumNanosecsPerMicrosec =  kNumNanosecsPerSec /
+    kNumMicrosecsPerSec;
 
 // January 1970, in NTP milliseconds.
 static const int64 kJan1970AsNtpMillisecs = INT64_C(2208988800000);
@@ -50,6 +52,8 @@
 
 // Returns the current time in milliseconds.
 uint32 Time();
+// Returns the current time in microseconds.
+uint64 TimeMicros();
 // Returns the current time in nanoseconds.
 uint64 TimeNanos();