Add methods to set the ICE connection receiving_timeout values.

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 ee6ac7e347f4f0f98bbdc1e17d74429d58add121..1bf77b6566a44cf958aa38e9535a1fd098f4cd43 100644
--- a/webrtc/p2p/base/dtlstransportchannel.h
+++ b/webrtc/p2p/base/dtlstransportchannel.h
@@ -204,6 +204,10 @@ class DtlsTransportChannelWrapper : public TransportChannelImpl {
     channel_->OnCandidate(candidate);
   }
 
+  void SetReceivingTimeout(int receiving_timeout_ms) {
+    channel_->SetReceivingTimeout(receiving_timeout_ms);
+  }
+
   // Needed by DtlsTransport.
   TransportChannelImpl* channel() { return channel_; }