Remove candidates when doing continual gathering

webrtc/p2p/base/candidate.h

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 152 matching lines @@
     // We ignore the network name, since that is just debug information, and
     // the priority, since that should be the same if the rest is (and it's
     // a float so equality checking is always worrisome).
     return (component_ == c.component_) && (protocol_ == c.protocol_) &&
            (address_ == c.address_) && (username_ == c.username_) &&
            (password_ == c.password_) && (type_ == c.type_) &&
            (generation_ == c.generation_) && (foundation_ == c.foundation_) &&
            (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);
   }
 
   std::string ToSensitiveString() const {
     return ToStringInternal(true);
   }
 
   uint32_t GetPriority(uint32_t type_preference,
                        int network_adapter_preference,
@@ skipping 60 matching lines @@
   virtual ~CandidateTranslator() {}
   virtual bool GetChannelNameFromComponent(
       int component, std::string* channel_name) const = 0;
   virtual bool GetComponentFromChannelName(
       const std::string& channel_name, int* component) const = 0;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_CANDIDATE_H_