Fixing a random hang when exiting full screen in chome.  The same bug doesn't happen in firefox or internet explorer. In chrome, the parent windows handle might get locked and the ShowWindow call is blocked and hang.  The fix is not to hind the window for repositioning. Review URL: http://codereview.chromium.org/6732033
Fixing a random hang when exiting full screen in chome.  The same bug doesn't
happen in firefox or internet explorer. In chrome, the parent windows handle
might get locked and the ShowWindow call is blocked and hang.  The fix is not
to hind the window for repositioning.
Review URL: http://codereview.chromium.org/6732033

git-svn-id: http://src.chromium.org/svn/trunk/src@79409 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 2ca053e84cf0deb1dafdb0cf8298d1d98bdd83be
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser