First step of passive aggressive nomination.

webrtc/p2p/base/port.h

Index: webrtc/p2p/base/port.h
diff --git a/webrtc/p2p/base/port.h b/webrtc/p2p/base/port.h
index b95d985b21e8a997536a386a5b7364d66ce791a3..a15ba54f9b97031e85bf1ec558d0569f7f62f196 100644
--- a/webrtc/p2p/base/port.h
+++ b/webrtc/p2p/base/port.h
@@ -505,6 +505,9 @@ class Connection : public rtc::MessageHandler,
   bool use_candidate_attr() const { return use_candidate_attr_; }
   void set_use_candidate_attr(bool enable);
 
+  bool nominated() const { return nominated_; }
+  void set_nominated(bool nominated) { nominated_ = nominated; }
+
   void set_remote_ice_mode(IceMode mode) {
     remote_ice_mode_ = mode;
   }
@@ -598,10 +601,13 @@ class Connection : public rtc::MessageHandler,
   bool connected_;
   bool pruned_;
   // By default |use_candidate_attr_| flag will be true,
-  // as we will be using agrressive nomination.
+  // as we will be using aggressive nomination.
   // But when peer is ice-lite, this flag "must" be initialized to false and
   // turn on when connection becomes "best connection".
   bool use_candidate_attr_;
+  // Whether this connection has been nominated by the controlling side via
+  // the use_candidate attribute.
+  bool nominated_;
   IceMode remote_ice_mode_;
   StunRequestManager requests_;
   uint32 rtt_;