Global constructors should be configurable and not enumerable

LayoutTests/fast/dom/DeviceOrientation/script-tests/window-property.js

 description('Tests that the window.DeviceOrientationEvent and window.ondeviceorientation properties are present.');
 
-function hasDeviceOrientationEventProperty()
-{
-    for (var property in window) {
-        if (property == 'DeviceOrientationEvent')
-            return true;
-    }
-    return false;
-}
-
 shouldBeTrue("typeof window.DeviceOrientationEvent == 'object'");
 shouldBeFalse("typeof window.DeviceOrientationEvent == 'function'");
-shouldBeTrue("hasDeviceOrientationEventProperty()");
+shouldBeFalse("window.propertyIsEnumerable('DeviceOrientationEvent')");
 shouldBeTrue("'DeviceOrientationEvent' in window");
 shouldBeTrue("window.hasOwnProperty('DeviceOrientationEvent')");
 
 function hasOnDeviceOrientationProperty()
 {
     for (var property in window) {
         if (property == 'ondeviceorientation')
             return true;
     }
     return false;
 }
 
 shouldBeTrue("typeof window.ondeviceorientation == 'object'");
 shouldBeTrue("hasOnDeviceOrientationProperty()");
 shouldBeTrue("'ondeviceorientation' in window");
 shouldBeTrue("window.hasOwnProperty('ondeviceorientation')");