bindings: Fixes battery-status test (attributes are not own properties).

LayoutTests/battery-status/api-defined.html

Index: LayoutTests/battery-status/api-defined.html
diff --git a/LayoutTests/battery-status/api-defined.html b/LayoutTests/battery-status/api-defined.html
index f247abe50907ffafc79df8b8d46181ef14e59a02..ea2a985e5fd7460c0fd4f98b096699499ab4e7ea 100644
--- a/LayoutTests/battery-status/api-defined.html
+++ b/LayoutTests/battery-status/api-defined.html
@@ -44,11 +44,6 @@ function batteryStatusSuccess(batteryManager) {
     shouldBeTrue("typeof battery.ondischargingtimechange == 'object'");
     shouldBeTrue("typeof battery.onlevelchange == 'object'");
 
-    shouldBeTrue("battery.hasOwnProperty('onchargingchange')");
-    shouldBeTrue("battery.hasOwnProperty('onchargingtimechange')");
-    shouldBeTrue("battery.hasOwnProperty('ondischargingtimechange')");
-    shouldBeTrue("battery.hasOwnProperty('onlevelchange')");
-
     shouldBeTrue("'onchargingchange' in battery");
     shouldBeTrue("'onchargingtimechange' in battery");
     shouldBeTrue("'ondischargingtimechange' in battery");
@@ -66,7 +61,7 @@ promise = navigator.getBattery();
 shouldBeDefined("promise");
 shouldBeDefined("promise.then");
 promise.then(batteryStatusSuccess, batteryStatusFailure);
-setAndFireMockBatteryInfo(false, 10, 20, 0.5); 
+setAndFireMockBatteryInfo(false, 10, 20, 0.5);
 </script>
 </body>
 </html>