Backport some changes from EE

MR: https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/9815

app/services/groups/base_service.rb

@@ -7,5 +7,11 @@ module Groups
     def initialize(group, user, params = {})
       @group, @current_user, @params = group, user, params.dup
     end
+
+    private
+
+    def remove_unallowed_params
+      # overridden in EE
+    end
   end
 end

app/services/groups/create_service.rb

@@ -8,6 +8,8 @@ module Groups
     end
     def execute
+      remove_unallowed_params
+
       @group = Group.new(params)
       after_build_hook(@group, params)

app/services/groups/update_service.rb

@@ -6,6 +6,7 @@ module Groups
     def execute
       reject_parent_id!
+      remove_unallowed_params
       return false unless valid_visibility_level_change?(group, params[:visibility_level])

lib/api/groups.rb

@@ -26,6 +26,7 @@ module API
           optional :ldap_cn, type: String, desc: 'LDAP Common Name'
           optional :ldap_access, type: Integer, desc: 'A valid access level'
           optional :shared_runners_minutes_limit, type: Integer, desc: '(admin-only) Pipeline minutes quota for this group'
+          optional :extra_shared_runners_minutes_limit, type: Integer, desc: '(admin-only) Extra pipeline minutes quota for this group'
           all_or_none_of :ldap_cn, :ldap_access
         end
       end

lib/api/users.rb

@@ -54,6 +54,7 @@ module API
           if Gitlab.ee?
             optional :shared_runners_minutes_limit, type: Integer, desc: 'Pipeline minutes quota for this user'
+            optional :extra_shared_runners_minutes_limit, type: Integer, desc: '(admin-only) Extra pipeline minutes quota for this user'
           end
         end