Implement DeviceLight

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

Index: LayoutTests/fast/dom/DeviceLight/script-tests/window-property.js
diff --git a/LayoutTests/fast/dom/DeviceLight/script-tests/window-property.js b/LayoutTests/fast/dom/DeviceLight/script-tests/window-property.js
new file mode 100644
index 0000000000000000000000000000000000000000..65194dd3213dedbd259e2d63397b1637a10bf057
--- /dev/null
+++ b/LayoutTests/fast/dom/DeviceLight/script-tests/window-property.js
@@ -0,0 +1,16 @@
+description("Tests that the window.DeviceLightEvent and window.ondevicelight properties are present.");
+
+function hasDeviceLightEventProperty()
+{
+    for (var property in window) {
+        if (property == "DeviceLightEvent")
+            return true;
+    }
+    return false;
+}
+
+shouldBeTrue("typeof window.DeviceLightEvent == 'object'");
+shouldBeFalse("typeof window.DeviceLightEvent == 'function'");
+shouldBeTrue("hasDeviceLightEventProperty()");
+shouldBeTrue("'DeviceLightEvent' in window");
+shouldBeTrue("window.hasOwnProperty('DeviceLightEvent')");