GitLab

Added required options run-as-user and run-as-password.
Added code to set security rights required to run service.
File access and chrome binary checks changed from fatal error to just error message.

BUG=141243


Review URL: https://chromiumcodereview.appspot.com/10824294

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@151652 0039d316-1c4b-4281-b951-d872f2087c98