End session on crash if current device-local account no longer exists
When a device-local account is removed, its policy is deleted from disk
immediately. If a session using this account happens to be in progress,
the session is allowed to continue with policy served from an in-memory
cache. If Chrome crashes later in the session, the policy becomes
completely unavailable. Exit the session in that case, rather than
allowing it to continue without policy.
BUG=178290
TEST=Manual in VM
Review URL: https://codereview.chromium.org/
252563007
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@266568 0039d316-1c4b-4281-b951-d872f2087c98