Honour preventDefault() on modified link clicks b=319554 r+sr=jag

git-svn-id: svn://10.0.0.236/trunk@202179 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/xpfe/communicator/resources/content/contentAreaClick.js

@@ -170,7 +170,7 @@
   // should always return true for click to go through
   function contentAreaClick(event) 
   {
-    if (!event.isTrusted) {
+    if (!event.isTrusted || event.getPreventDefault()) {
       return true;
     }
 
@@ -193,7 +193,6 @@
     }
 
     if (pref && !isKeyPress && event.button == 1 &&
-        !event.getPreventDefault() &&
         pref.getBoolPref("middlemouse.contentLoadURL")) {
       if (middleMousePaste(event)) {
         event.stopPropagation();