GTK Themes: Fix spacing so page and app menus take up full height in GTK theme mode.
GTK Themes: Fix spacing so page and app menus take up full height in GTK theme mode.

Review URL: http://codereview.chromium.org/159103

git-svn-id: http://src.chromium.org/svn/trunk/src@21120 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 4fb9137f0b160486257b59c8f065597f88917dab
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