Add package info for Crostini apps

Add package_id of owning package to the Cicerone -> Host proto

TEST=Apps from .desktop files associated with a package now have
'uninstall' on right-click menu; Apps from .desktop files I created do
not have 'uninstall'

Change-Id: Ibe148209763a4633a653107b2819a56146d5706f
Commit-Ready: ChromeOS CL Exonerator Bot <>
Tested-by: Ian Barkley-Yeung <>
Reviewed-by: Jeffrey Kardatzke <>
Reviewed-by: Stephen Barber <>
Reviewed-by: Chirantan Ekbote <>
1 file changed