Revert of Make P2PTransportChannel inherit from IceTransportInternal.

webrtc/p2p/base/transportchannelimpl.h

Index: webrtc/p2p/base/transportchannelimpl.h
diff --git a/webrtc/p2p/base/transportchannelimpl.h b/webrtc/p2p/base/transportchannelimpl.h
index 01af286c296da5de97865157892ab7c6db5a5f4d..1d43e54d0a8fd477e4e0ca700e20f1bcb4f7c67a 100644
--- a/webrtc/p2p/base/transportchannelimpl.h
+++ b/webrtc/p2p/base/transportchannelimpl.h
@@ -14,7 +14,6 @@
 #include <string>
 
 #include "webrtc/base/constructormagic.h"
-#include "webrtc/p2p/base/icetransportinternal.h"
 #include "webrtc/p2p/base/transportchannel.h"
 
 namespace buzz { class XmlElement; }
@@ -26,6 +25,12 @@
 namespace cricket {
 
 class Candidate;
+
+// TODO(pthatcher): Remove this once it's no longer used in
+// remoting/protocol/libjingle_transport_factory.cc
+enum IceProtocolType {
+  ICEPROTO_RFC5245  // Standard RFC 5245 version of ICE.
+};
 
 // Base class for real implementations of TransportChannel.  This includes some
 // methods called only by Transport, which do not need to be exposed to the