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: de016e52bd170d2d4f2344f9bf92d50478b649e0@38283 0039d316-1c4b-4281-b951-d872f2087c98

yitian134/chromium,ropik/chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,adobe/chromium,gavinp/chromium,gavinp/chromium,gavinp/chromium,ropik/chromium,adobe/chromium,adobe/chromium,Crystalnix/house-of-life-chromium,yitian134/chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,ropik/chromium,gavinp/chromium,gavinp/chromium,ropik/chromium,Crystalnix/house-of-life-chromium,yitian134/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,adobe/chromium,gavinp/chromium,adobe/chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,adobe/chromium,yitian134/chromium,yitian134/chromium,yitian134/chromium,ropik/chromium,Crystalnix/house-of-life-chromium,adobe/chromium,gavinp/chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,ropik/chromium,adobe/chromium,ropik/chromium,adobe/chromium,Crystalnix/house-of-life-chromium,gavinp/chromium,ropik/chromium,yitian134/chromium,Crystalnix/house-of-life-chromium