Can you tell UIWebView to use a white indicator style?

Starting iOS 5.0 onwards, one can now customize the scrolling behavior of the web view by accessing the 'scrollview' property to achieve the desired functionality:

webView.scrollView.indicatorStyle = UIScrollViewIndicatorStyleWhite;

If you do want to scan the subviews and attempt to gracefully fail if something changes in the future this currently works:

    //set a white scroll bar
    for (UIView *subview in [webView subviews]) {
        if ([subview isKindOfClass:NSClassFromString(@"UIScroller")] || [subview isKindOfClass:NSClassFromString(@"UIScrollView")]) {
            if ([subview respondsToSelector:@selector(setIndicatorStyle:)]) {
                [(UIScrollView *)subview setIndicatorStyle:UIScrollViewIndicatorStyleWhite];
            }
            break;
        }
    }

Though things could still break in the future if setIndicatorStyle: changes to expect a non-enumerated value... but I doubt that would happen.