MD Settings: Certificate manager, hooking up all dialogs.
- When a menu option is selected, dispatching a CertificateActionEvent.
- Listening for that event from certificate_manager_page.js and opening
appropriate dialog.
- Also listening for the certificates-error event, such that the error dialog can
be shown.
BUG=
547073
Committed:
https://crrev.com/a828668c94c68c08ed6f5838baacef475d842910
Cr-Commit-Position: refs/heads/master@{#383388}