Extract code from performLayoutAndPlaceSurfacesInnerLocked() into multiple methods.

    /**

     * Return the available screen width that we should report for the

     * configuration.  This must be no larger than

     * {@link #getNonDecorDisplayWidth(int, int)}; it may be smaller than

     * {@link #getNonDecorDisplayWidth(int, int, int)}; it may be smaller than

     * that to account for more transient decoration like a status bar.

     */

    public int getConfigDisplayWidth(int fullWidth, int fullHeight, int rotation);

    /**

     * Return the available screen height that we should report for the

     * configuration.  This must be no larger than

     * {@link #getNonDecorDisplayHeight(int, int)}; it may be smaller than

     * {@link #getNonDecorDisplayHeight(int, int, int)}; it may be smaller than

     * that to account for more transient decoration like a status bar.

     */

    public int getConfigDisplayHeight(int fullWidth, int fullHeight, int rotation);

     * Called when layout of the windows is finished.  After this function has

     * returned, all windows given to layoutWindow() <em>must</em> have had a

     * frame assigned.

     *  

     * @return Return any bit set of {@link #FINISH_LAYOUT_REDO_LAYOUT},

     * {@link #FINISH_LAYOUT_REDO_CONFIG}, {@link #FINISH_LAYOUT_REDO_WALLPAPER},

     * or {@link #FINISH_LAYOUT_REDO_ANIM}.

     */

    public int finishLayoutLw();

    public void finishLayoutLw();

    /** Layout state may have changed (so another layout will be performed) */

    static final int FINISH_LAYOUT_REDO_LAYOUT = 0x0001;

    public interface ScreenOnListener {

        void onScreenOn();

    };

    }

    /**

     * Called when the power manager would like to turn the screen on.

    }

    /** {@inheritDoc} */

    public int finishLayoutLw() {

        return 0;

    @Override

    public void finishLayoutLw() {

        return;

    }

    /** {@inheritDoc} */