Fixing issue with DTLS channel when using "presume writable" flag.

webrtc/p2p/base/dtlstransportchannel.h

Index: webrtc/p2p/base/dtlstransportchannel.h
diff --git a/webrtc/p2p/base/dtlstransportchannel.h b/webrtc/p2p/base/dtlstransportchannel.h
index c8b76d33033e25138900bb4547754dbda2d05032..7b8247a44903a5da6ac3535845f6f83a8c9678be 100644
--- a/webrtc/p2p/base/dtlstransportchannel.h
+++ b/webrtc/p2p/base/dtlstransportchannel.h
@@ -207,7 +207,7 @@ class DtlsTransportChannelWrapper : public TransportChannelImpl {
   void OnReceivingState(TransportChannel* channel);
   void OnDtlsEvent(rtc::StreamInterface* stream_, int sig, int err);
   bool SetupDtls();
-  bool MaybeStartDtls();
+  void MaybeStartDtls();
   bool HandleDtlsPacket(const char* data, size_t size);
   void OnGatheringState(TransportChannelImpl* channel);
   void OnCandidateGathered(TransportChannelImpl* channel, const Candidate& c);
@@ -221,7 +221,6 @@ class DtlsTransportChannelWrapper : public TransportChannelImpl {
       int last_sent_packet_id,
       bool ready_to_send);
   void OnChannelStateChanged(TransportChannelImpl* channel);
-  void Reconnect();
 
   rtc::Thread* worker_thread_;  // Everything should occur on this thread.
   // Underlying channel, not owned by this class.