[BlackBerry] InRegionScrollableArea: fix call to visibleContentRect()
https://bugs.webkit.org/show_bug.cgi?id=112244

Patch by Alberto Garcia <agarcia@igalia.com> on 2013-03-14
Reviewed by Rob Buis.

Since r143295 visibleContentRect() receives an enum, not a boolean.

* WebKitSupport/InRegionScrollableArea.cpp:
(BlackBerry::WebKit::InRegionScrollableArea::InRegionScrollableArea):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@145792 268f45cc-cd09-0410-ab3c-d52691b4dbfc