Bug 385065 - protocol handling dialog. r=cbiesinger (forgot to fix two nits)

uriloader/exthandler/nsExternalHelperAppService.cpp

@@ -1206,7 +1206,7 @@ nsExternalHelperAppService::LoadURI(nsIURI *aURI,
   NS_ENSURE_ARG_POINTER(aURI);
 
   nsCAutoString scheme;
-  (void)aURI->GetScheme(scheme);
+  aURI->GetScheme(scheme);
   if (scheme.IsEmpty())
     return NS_OK; // must have a scheme
 

uriloader/exthandler/nsExternalProtocolHandler.cpp

@@ -188,7 +188,7 @@ nsresult nsExtProtocolChannel::OpenURL()
     NS_ASSERTION(haveHandler, "Why do we have a channel for this url if we don't support the protocol?");
 #endif
 
-    rv = extProtService->LoadURI(mUrl, nsnull);
+    rv = extProtService->LoadURI(mUrl, mCallbacks);
   }
 
   // Drop notification callbacks to prevent cycles.