Providing more information on why certain users can't be added to multi-profile

chrome/browser/ui/ash/session_state_delegate_views.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/ash/session_state_delegate_views.h"
 
 #include "base/logging.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/user_manager/empty_user_info.h"
@@ skipping 73 matching lines @@
 }
 
 void SessionStateDelegate::SwitchActiveUser(const std::string& user_id) {
   NOTIMPLEMENTED();
 }
 
 void SessionStateDelegate::CycleActiveUser(CycleUser cycle_user) {
   NOTIMPLEMENTED();
 }
 
+PrimaryUserPolicy SessionStateDelegate::GetPrimaryUserPolicy() const {
+  return PRIMARY_USER_POLICY_ALLOW;
+}
+
 void SessionStateDelegate::AddSessionStateObserver(
     ash::SessionStateObserver* observer) {
   NOTIMPLEMENTED();
 }
 
 void SessionStateDelegate::RemoveSessionStateObserver(
     ash::SessionStateObserver* observer) {
   NOTIMPLEMENTED();
 }