fix spelling of comments

remoting/jingle_glue/iq_request.cc

Index: remoting/jingle_glue/iq_request.cc
diff --git a/remoting/jingle_glue/iq_request.cc b/remoting/jingle_glue/iq_request.cc
index e434be535dcdb3340b8000d7e264e115b18ca35b..3b9d574a06652e1f235f2da47a5d4a67440fca6f 100644
--- a/remoting/jingle_glue/iq_request.cc
+++ b/remoting/jingle_glue/iq_request.cc
@@ -308,7 +308,7 @@ void SessionStartRequest::OnResponse(const buzz::XmlElement* response) {
   // Also, if no response is found, we are supposed to call
   // SessionManager::OnFailedSend().
   //
-  // However, for right now, we just ignore those, and only propogate
+  // However, for right now, we just ignore those, and only propagate
   // messages outside of the request/reply framework to
   // SessionManager::OnIncomingMessage.