Reenable the existing desktop notifications unittests which were removed from the gyp file.
Reenable the existing desktop notifications unittests which were removed from the gyp file.

BUG=none
TEST=none
TBR=thakis

Review URL: http://codereview.chromium.org/2812048

git-svn-id: http://src.chromium.org/svn/trunk/src@51801 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: e2efb9322708ead4df0cd6df6f9879c4df9b1c65
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