Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1341656
Description of problem:
User with Viewer role assigned can create/update/publish/promote/remove Content Views, even the existing ones!!!

Version-Release number of selected component (if applicable):
6.2.0-Snap13.1

How reproducible:
always

Steps to Reproduce:
0. Prepare some content, some CVs under admin account
1. Create a user with just Viewer role assigned
2. Login as viewer user and navigate to Content -> Content Views
3. Have a "good play" with admin content

Actual results:
predefined role grants unexpected permissions

Expected results:
predefined role grants only expected permissions