GitLab

Refactor to put the logic for NTP app grayscaling in Javascript.
Disabled and terminated apps don't disappear from the NTP.
Update the NTP apps when offline status changes.

Caveat: the webstore icon doesn't get desaturated.

BUG=89655,94322,90433
TEST=Open NTP with packaged apps in disabled/enabled state; observe them changing
color when disabled/enabled via chrome://extensions page. Observe color changes
when network interface is unplugged.

Review URL: http://codereview.chromium.org/7792024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@98908 0039d316-1c4b-4281-b951-d872f2087c98