Change to calculate the real NTP in TimeTicks.

media/cast/rtcp/rtcp.cc

Index: media/cast/rtcp/rtcp.cc
diff --git a/media/cast/rtcp/rtcp.cc b/media/cast/rtcp/rtcp.cc
index 875736bb804363e8005c49a8e689ebafc7a9ca2a..a1720ffe1a2e433c9026d21c6482df8e79e6bb86 100644
--- a/media/cast/rtcp/rtcp.cc
+++ b/media/cast/rtcp/rtcp.cc
@@ -273,7 +273,7 @@ void Rtcp::SendRtcp(const base::TimeTicks& now,
 
     packet_type_flags |= RtcpSender::kRtcpRrtr;
     RtcpReceiverReferenceTimeReport rrtr;
-    ConvertTimeToNtp(now, &rrtr.ntp_seconds, &rrtr.ntp_fraction);
+    ConvertTimeTicksToNtp(now, &rrtr.ntp_seconds, &rrtr.ntp_fraction);
 
     time_last_report_sent_ = now;
     last_report_sent_ = ConvertToNtpDiff(rrtr.ntp_seconds, rrtr.ntp_fraction);
@@ -335,9 +335,9 @@ bool Rtcp::RtpTimestampInSenderTime(int frequency, uint32 rtp_timestamp,
   // Sanity check.
   if (abs(rtp_time_diff_ms) > kMaxDiffSinceReceivedRtcpMs)  return false;
 
-  *rtp_timestamp_in_ticks =
-     ConvertNtpToTime(last_received_ntp_seconds_, last_received_ntp_fraction_) +
-     base::TimeDelta::FromMilliseconds(rtp_time_diff_ms);
+  *rtp_timestamp_in_ticks = ConvertNtpToTimeTicks(last_received_ntp_seconds_,
+      last_received_ntp_fraction_) +
+      base::TimeDelta::FromMilliseconds(rtp_time_diff_ms);
   return true;
 }