Bug 817330 - test_bug458898.html fails if dom.disable_window_move_resize = true. r=dbaron

layout/base/tests/test_bug458898.html

@@ -24,10 +24,14 @@ var win = window.openDialog("data:text/html,<div style='height:200px; width:100p
 
 function loaded() {
   netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+  var disableWindowResizePref = "dom.disable_window_move_resize";
+  var oldPrefValue = SpecialPowers.getBoolPref(disableWindowResizePref);
+  SpecialPowers.setBoolPref(disableWindowResizePref, false);
   win.sizeToContent();
   ok(win.innerWidth >= 100, "innerWidth: " + win.innerWidth + " >= 100 ?");
   ok(win.innerHeight >= 200, "innerHeight: " + win.innerHeight + " >= 200 ?");
   win.close();
+  SpecialPowers.setBoolPref(disableWindowResizePref, oldPrefValue);
   SimpleTest.finish();
 }