Merge "Document BlurMaskFilter.Blur." into lmp-dev

public class BlurMaskFilter extends MaskFilter {

    public enum Blur {

        NORMAL(0),  //!< blur inside and outside of the original border

        SOLID(1),   //!< include the original mask, blur outside

        OUTER(2),   //!< just blur outside the original border

        INNER(3);   //!< just blur inside the original border

        /**

         * Blur inside and outside the original border.

         */

        NORMAL(0),

        /**

         * Draw solid inside the border, blur outside.

         */

        SOLID(1),

        /**

         * Draw nothing inside the border, blur outside.

         */

        OUTER(2),

        /**

         * Blur inside the border, draw nothing outside.

         */

        INNER(3);

        Blur(int value) {

            native_int = value;