Gallery widget sets invalid dimensions for container element in maximized mode

uicomponents/widgets/gallery/gallery.js sets invalid dimensions for container in maximized mode (line 153), resulting in empty left/bottom border (20px each)

Bug can be reproduced here ( http://extensions.xwiki.org/xwiki/bin/view/Extension/Presentation+Application ), tested with latest Chromium/Firefox (Windows 7, Linux), IE 9