only send new visiblerect and size on onscrollchanged if we're not in overscroll mode

    @Override

    protected void onScrollChanged(int l, int t, int oldl, int oldt) {

        super.onScrollChanged(l, t, oldl, oldt);

        if (!mInOverScrollMode) {

            sendOurVisibleRect();

            // update WebKit if visible title bar height changed. The logic is same

            // as getVisibleTitleHeight.

            int titleHeight = getTitleHeight();

            if (Math.max(titleHeight - t, 0) != Math.max(titleHeight - oldt, 0)) {

                sendViewSizeZoom();

            }

        }

    }

    @Override