Build content_shell.pak, too
Build content_shell.pak, too

This is useful for client apps.

jlord/libchromiumcontent,hokein/libchromiumcontent,electron/libchromiumcontent,brave/libchromiumcontent,eric-seekas/libchromiumcontent,synaptek/libchromiumcontent,adamjgray/libchromiumcontent,brave/libchromiumcontent,synaptek/libchromiumcontent,zhanggyb/libchromiumcontent,atom/libchromiumcontent,adamjgray/libchromiumcontent,paulcbetts/libchromiumcontent,jlord/libchromiumcontent,deepak1556/libchromiumcontent,zhanggyb/libchromiumcontent,atom/libchromiumcontent,bbondy/libchromiumcontent,bbondy/libchromiumcontent,deepak1556/libchromiumcontent,electron/libchromiumcontent,eric-seekas/libchromiumcontent,paulcbetts/libchromiumcontent,hokein/libchromiumcontent