Fix for closing the download shelf with multiple tabs open.
Fix for closing the download shelf with multiple tabs open.

Make sure that the browser window is informed of the download
shelf visibility status at the end of the show / hide animation.

BUG=13369

Review URL: http://codereview.chromium.org/118278

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@17690 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser