7fb69db670
When doing candidate re-gathering in the same ICE generation, signal the remote side to remove its remote candidates. Fixed the pure virtual method in jsep.h BUG= R=glaznev@webrtc.org, pthatcher@webrtc.org Review URL: https://codereview.webrtc.org/1788703003 . Cr-Commit-Position: refs/heads/master@{#11985}