void DeviceOrientationController::didUpdateData()
{
    if (m_overrideOrientationData)
        return;
    dispatchDeviceEvent(lastEvent());
}
void DeviceSingleWindowEventController::didUpdateData()
{
    dispatchDeviceEvent(lastEvent());
}
void DeviceOrientationController::setOverride(DeviceOrientationData* deviceOrientationData)
{
    ASSERT(deviceOrientationData);
    m_overrideOrientationData = deviceOrientationData;
    dispatchDeviceEvent(lastEvent());
}