GitLab

Added a new kUserRemovedLoginItem pref that is used to track if the user has
previously removed a login item for chrome. This is so we don't keep re-creating
the login item every time the user enables/installs a background app if they
have indicated that they don't want chrome to open at login.

BUG=140017
TEST=Install background app on mac, uncheck "Open at Login" checkbox in dock menu, disable and re-enable the app via Tools->Extension, make sure Open at Login checkbox does not get re-enabled.


Review URL: https://chromiumcodereview.appspot.com/10823221

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@151102 0039d316-1c4b-4281-b951-d872f2087c98