Modifies the toast to append "--system-level" if a system-level install is attempting to relaunch setup.
Modifies the toast to append "--system-level" if a system-level install is attempting to relaunch setup.

The launch flow as it exists now is:
Update -> setup.exe --system-level-toast --> setup.exe --inactive-user-toast=0

the modified flow will be:
Update -> setup.exe --system-level-toast --> setup.exe --inactive-user-toast=0 --system-level

R=cpu
BUG=none
TEST=Run setup.exe --system-level-toast with a system-level install.  Toast should show.

Review URL: http://codereview.chromium.org/581003

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@38283 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser