Remove candidates when doing continual gathering

webrtc/api/jsep.h

Index: webrtc/api/jsep.h
diff --git a/webrtc/api/jsep.h b/webrtc/api/jsep.h
index 0673ce128e053098bbc87c7ee264ce88d6a01ccf..8ad26eda2a6ab1deaf36a4869b85043234f6768c 100644
--- a/webrtc/api/jsep.h
+++ b/webrtc/api/jsep.h
@@ -20,8 +20,9 @@
 #include "webrtc/base/refcount.h"
 
 namespace cricket {
-class SessionDescription;
 class Candidate;
+class SessionDescription;
+typedef std::vector<Candidate> Candidates;

[pthatcher1, 2016/03/05 02:14:32]

Can you just use std::vector<Candidate> everywhere instead of Candidates?  The
style guide frowns on this sort of thing (even though we used to do it along
time ago, with C++11 for-loops helping out, we've moved away from it)

[honghaiz3, 2016/03/09 17:40:06]

Done.

 }  // namespace cricket
 
 namespace webrtc {
@@ -95,6 +96,10 @@ class SessionDescriptionInterface {
   // Returns false if the session description does not have a media section that
   // corresponds to the |candidate| label.
   virtual bool AddCandidate(const IceCandidateInterface* candidate) = 0;
+  // Removes the candidates from the description.
+  // Returns the number of candidates removed.
+  virtual size_t RemoveCandidates(const cricket::Candidates& candidates) = 0;
+
   // Returns the number of m- lines in the session description.
   virtual size_t number_of_mediasections() const = 0;
   // Returns a collection of all candidates that belong to a certain m-line