Update talk to 59410372.

R=jiayl@webrtc.org, wu@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/6929004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5367 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/app/webrtc/mediaconstraintsinterface.h b/talk/app/webrtc/mediaconstraintsinterface.h
index 5cf2184..7a207e4 100644
--- a/talk/app/webrtc/mediaconstraintsinterface.h
+++ b/talk/app/webrtc/mediaconstraintsinterface.h
@@ -107,11 +107,10 @@
   static const char kEnableDtlsSrtp[];  // Enable DTLS-SRTP
   // Temporary pseudo-constraints used to enable DataChannels
   static const char kEnableRtpDataChannels[];  // Enable RTP DataChannels
-  // TODO(perkj): Remove kEnableSctpDataChannels once Chrome use
-  // PeerConnectionFactory::SetOptions.
-  static const char kEnableSctpDataChannels[];  // Enable SCTP DataChannels
   // Temporary pseudo-constraint for enabling DSCP through JS.
   static const char kEnableDscp[];
+  // Constraint to enable IPv6 through JS.
+  static const char kEnableIPv6[];
 
   // The prefix of internal-only constraints whose JS set values should be
   // stripped by Chrome before passed down to Libjingle.