Merge "Update Chooser shadows to match Launcher." into tm-dev

            new SynchronizedPool<>(Runtime.getRuntime().availableProcessors());

    private static final int DEFAULT_WRAPPER_BACKGROUND = Color.WHITE;

    private static final float BLUR_FACTOR = 0.5f / 48;

    private static final float BLUR_FACTOR = 1.5f / 48;

    private Context mContext;

    private Canvas mCanvas;

    /* Shadow generator block */

    private static final float KEY_SHADOW_DISTANCE = 1f / 48;

    private static final int KEY_SHADOW_ALPHA = 61;

    private static final int AMBIENT_SHADOW_ALPHA = 30;

    private static final int KEY_SHADOW_ALPHA = 10;

    private static final int AMBIENT_SHADOW_ALPHA = 7;

    private Paint mBlurPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);

    private Paint mDrawPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);