Fixing correct UMA metric for PeerConnection enabled with IPv4 Vs IPv6.

BUG=N/A
TBR=jiayl@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/21499007

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6242 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/app/webrtc/peerconnection.cc b/talk/app/webrtc/peerconnection.cc
index 7774aa2..37b2a3b 100644
--- a/talk/app/webrtc/peerconnection.cc
+++ b/talk/app/webrtc/peerconnection.cc
@@ -625,9 +625,9 @@
   // Send information about IPv4/IPv6 status.
   if (uma_observer_ && port_allocator_) {
     if (port_allocator_->flags() & cricket::PORTALLOCATOR_ENABLE_IPV6) {
-      uma_observer_->IncrementCounter(kPeerConnection_IPv4);
-    } else {
       uma_observer_->IncrementCounter(kPeerConnection_IPv6);
+    } else {
+      uma_observer_->IncrementCounter(kPeerConnection_IPv4);
     }
   }
 }