Remove candidates when doing continual gathering

webrtc/p2p/base/candidate.h

Index: webrtc/p2p/base/candidate.h
diff --git a/webrtc/p2p/base/candidate.h b/webrtc/p2p/base/candidate.h
index ac7acabf057cdd06fa4beb915989bc49d65f04ec..5f481a7f00e2b7cfb17c426d8ebe4e04b038f5fc 100644
--- a/webrtc/p2p/base/candidate.h
+++ b/webrtc/p2p/base/candidate.h
@@ -170,6 +170,13 @@ class Candidate {
            (related_address_ == c.related_address_);
   }
 
+  // Check the equivalence of two candidates even if they are peer-reflexive
+  // candidates of which not all fields have been filled.
+  bool IsWeaklyEquivalent(const Candidate& c) const {

[pthatcher1, 2016/02/10 00:01:41]

We should make this something more removal-specific, like MatchesForRemoval

[honghaiz3, 2016/02/10 19:22:44]

Done.

+    return component_ == c.component_ && protocol_ == c.protocol_ &&
+           address_ == c.address_;
+  }
+
   std::string ToString() const {
     return ToStringInternal(false);
   }