Install libchrome-dev and libchromeos-dev packages
Install libchrome-dev and libchromeos-dev packages

Add make_pkg.sh for src/third_party/chrome/ (a.k.a. libchrome-dev) and
src/common/ (a.k.a. libchromeos-dev) and (ab)use it to install those
packages once built.

Installing the packages from make_pkg.sh isn't very clean. However, this
gives us a migration path to future use of chromeos-build, which will
need these headers and libraries to be built as packages in order to
support cross-building cleanly.

Review URL: http://codereview.chromium.org/523109

nicescale/scripts,mischief/scripts,vmware/coreos-scripts,endocode/scripts,bcwaldon/coreos-scripts,andrejro/coreos--scripts,sigma/coreos-scripts,coreos/scripts,gtank/scripts,BugRoger/scripts,mjg59/scripts,zhang0137/scripts,crawford/scripts,trnubo/scripts,bcwaldon/coreos-scripts,fivethreeo/scripts,coreos/scripts,bcwaldon/coreos-scripts,sigma/coreos-scripts,trnubo/scripts,marineam/coreos-scripts,smilart/scripts,sigma/coreos-scripts,endocode/scripts,BugRoger/scripts,marineam/coreos-scripts,glevand/coreos--scripts,andrejro/coreos--scripts,mischief/scripts,smilart/scripts,nicescale/scripts,glevand/coreos--scripts,fivethreeo/scripts,vmware/coreos-scripts,marineam/coreos-scripts,zhang0137/scripts,mischief/scripts,trnubo/scripts,gtank/scripts,endocode/scripts,gtank/scripts,mjg59/scripts,zhang0137/scripts,crawford/scripts,andrejro/coreos--scripts,BugRoger/scripts,smilart/scripts,nicescale/scripts,crawford/scripts,mjg59/scripts,fivethreeo/scripts,vmware/coreos-scripts