Merge "Fix adb shell command for screen_brightness" into rvc-dev

    private ObjectAnimator mColorFadeOffAnimator;

    private RampAnimator<DisplayPowerState> mScreenBrightnessRampAnimator;

    // The brightness synchronizer to allow changes in the int brightness value to be reflected in

    // the float brightness value and vice versa.

    @Nullable

    private final BrightnessSynchronizer mBrightnessSynchronizer;

    /**

     * Creates the display power controller.

        mWindowManagerPolicy = LocalServices.getService(WindowManagerPolicy.class);

        mBlanker = blanker;

        mContext = context;

        mBrightnessSynchronizer = new BrightnessSynchronizer(context);

        mDisplayDevice = displayDevice;

        PowerManager pm =  context.getSystemService(PowerManager.class);