am a9144ffd: Merge "Disable automatic screen dimming." into jb-dev

    static final int ANIM_STEPS = 60; // nominal # of frames at 60Hz

    // Slower animation for autobrightness changes

    static final int AUTOBRIGHTNESS_ANIM_STEPS = 2 * ANIM_STEPS;

    // Even slower animation for autodimness changes

    static final int AUTODIMNESS_ANIM_STEPS = 15 * ANIM_STEPS;

    // Even slower animation for autodimness changes. Set to max to effectively disable dimming.

    // Note 100 is used to keep the mWindowScaleAnimation scaling below from overflowing an int.

    static final int AUTODIMNESS_ANIM_STEPS = Integer.MAX_VALUE / (NOMINAL_FRAME_TIME_MS * 100);

    // Number of steps when performing a more immediate brightness change.

    static final int IMMEDIATE_ANIM_STEPS = 4;