Update chat_manager's manifest due to r50278 where launch was moved under the new app section.
Update chat_manager's manifest due to r50278 where launch was moved under the new app section.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/2862023

git-svn-id: http://src.chromium.org/svn/trunk/src@50419 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 4a50cb1a5274982d5f2304447528161590301d81
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