GTK: Fix incognito man being full height.
GTK: Fix incognito man being full height.

(This copies one line I missed during my previous incognito man patch.)

BUG=61596
TEST=no gap between the tabs and toolbar as described in bug.

Review URL: http://codereview.chromium.org/4387001

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@64954 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