It seems adding only one kernel parameter "acpi_backlight=vendor" also works on my G360 now. But, both methods of adding kernel parameters will stop work occasionly.
Added "acpi_backlight=vendor acpi_osi=linux video.brightness_switch_enabled=1"
into grub boot kernel parameters, "Fn + Up/Down" to change brigtness works on
my G360. It's no need to write a Udev rules like my previous method.