Add test_notification_tracker.cc to SCons build unit tests. TBR: brettw
Add test_notification_tracker.cc to SCons build unit tests.
TBR: brettw

git-svn-id: http://src.chromium.org/svn/trunk/src@1055 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 3be986417da26e32b0ec9769d6c27030df2506c6
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