Merge change 21901 into eclair

                != PackageManager.PERMISSION_GRANTED) {

            throw new SecurityException("Requires VIBRATE permission");

        }

        if (mCurrentVibration != null

                && mCurrentVibration.hasLongerTimeout(milliseconds)) {

        // We're running in the system server so we cannot crash. Check for a

        // timeout of 0 or negative. This will ensure that a vibration has

        // either a timeout of > 0 or a non-null pattern.

        if (milliseconds <= 0 || (mCurrentVibration != null

                && mCurrentVibration.hasLongerTimeout(milliseconds))) {

            // Ignore this vibration since the current vibration will play for

            // longer than milliseconds.

            return;