Refactor callers of RefControl#isVisible

This commit refactors callers to use PermissionBackend instead of
RefControl#isVisible and adds handling for PermissionBackendException on
EventDispatcher#postEvent.

Change-Id: Ic6378b0fd88cc770b061c551d0511d352a9f3d61
1 file changed
tree: d5af1c1d125de29b552d4a056e04bab75859e610
  1. .settings/
  2. src/
  3. .gitignore
  4. .mailmap
  5. BUILD
  6. LICENSE