Use the infobar for installed extensions in incognito, since the browser action will not be visible.
Use the infobar for installed extensions in incognito, since the browser
action will not be visible.

BUG=39763

Review URL: http://codereview.chromium.org/1535007

git-svn-id: http://src.chromium.org/svn/trunk/src@43291 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 599935c3a20cf70470f74fa04c70d25bbe2ab8fc
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