Update talk to 61699344.

TBR=wu@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/8809004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5560 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/media/base/mediachannel.h b/talk/media/base/mediachannel.h
index 1a84704..7c42b70 100644
--- a/talk/media/base/mediachannel.h
+++ b/talk/media/base/mediachannel.h
@@ -539,6 +539,10 @@
       const std::vector<RtpHeaderExtension>& extensions) = 0;
   virtual bool SetSendRtpHeaderExtensions(
       const std::vector<RtpHeaderExtension>& extensions) = 0;
+  // Returns the absoulte sendtime extension id value from media channel.
+  virtual int GetRtpSendTimeExtnId() const {
+    return -1;
+  }
   // Sets the initial bandwidth to use when sending starts.
   virtual bool SetStartSendBandwidth(int bps) = 0;
   // Sets the maximum allowed bandwidth to use when sending data.