Do not show apps section until default apps are installed.
The referenced bugs were side-effects of this underlying issue.

BUG=67073,67075
TEST=Run chrome on new profile. Apps section should not show up
initially. Go to chrome://extensions/ -> developer mode, and
click 'update now'. Apps should show up along with promo.
Uninstall all apps. Apps section should keep showing up.

Review URL: http://codereview.chromium.org/5958002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@69758 0039d316-1c4b-4281-b951-d872f2087c98
4 files changed