Unification of LoadUrl signature to remove some warnings on Linux & Mac. LoadUrl signature takes a display consumer.

mailnews/compose/src/nsSmtpProtocol.cpp

@@ -1190,7 +1190,7 @@ PRInt32 nsSmtpProtocol::SendMessageResponse()
 }
 
 
-nsresult nsSmtpProtocol::LoadUrl(nsIURL * aURL)
+nsresult nsSmtpProtocol::LoadUrl(nsIURL * aURL, nsISupports * /* aConsumer */)
 {
 	nsresult rv = NS_OK;
     PRInt32 status = 0; 

mailnews/compose/src/nsSmtpProtocol.h

@@ -74,7 +74,7 @@ public:
 	nsSmtpProtocol(nsIURL * aURL);
 	virtual ~nsSmtpProtocol();
 
-	virtual nsresult LoadUrl(nsIURL * aURL);
+	virtual nsresult LoadUrl(nsIURL * aURL, nsISupports * aConsumer = nsnull);
 
 	////////////////////////////////////////////////////////////////////////////////////////
 	// we suppport the nsIStreamListener interface