Disables "Bookmark all tabs" item in the tab contex menu.
Disables "Bookmark all tabs" item in the tab contex menu.

BUG=chromium-os:6028
TEST=Go BWSI session, open at least 2 tabs, notice item "Bookmark all tabs" is disabled.

Review URL: http://codereview.chromium.org/3440008

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@60167 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