Fix for bug 229668 (Hang after typing keywords into address bar for "I'm feeling lucky" google search). Patch by jtalkington@users.sourceforge.net, r=jshin, sr=peterv.

docshell/base/nsWebShell.cpp

@@ -862,8 +862,11 @@ nsresult nsWebShell::EndPageLoad(nsIWebProgress *aProgress,
 
         if(keywordsEnabled && (-1 == dotLoc)) {
           // only send non-qualified hosts to the keyword server
+          nsCAutoString keywordSpec("keyword:");
+          keywordSpec += host;
+
           NS_NewURI(getter_AddRefs(newURI),
-                    NS_LITERAL_CSTRING("keyword:") + host, nsnull);
+                    keywordSpec, nsnull);
         } // end keywordsEnabled
       }