$ cat /usr/share/applications/chromium-browser.desktop | grep Exec
Exec=chromium-browser %U
...

$ cat ~/.local/share/applications/chromium-browser.desktop | grep Exec
Exec=/usr/lib/chromium-browser/chromium-browser --use-system-title-bar --ppapi-flash-path=/usr/lib/pepflashplugin-installer/libpepflashplayer.so --ppapi-flash-version=14.0.0.125