GitLab

Enable the new elevation for managed users which is tied to a specific WebContents. This replaces the old elevation which was tied to a profile.

BUG=222364
TEST=unit_tests,browser_tests


Review URL: https://chromiumcodereview.appspot.com/13119011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@192549 0039d316-1c4b-4281-b951-d872f2087c98