A11y: Add the option to always show the a11y tray menu regardless of the state of a11y features

ash/test/test_shell_delegate.cc

 // Copyright (c) 2012 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 "ash/test/test_shell_delegate.h"
 
 #include <algorithm>
 
 #include "ash/caps_lock_delegate_stub.h"
 #include "ash/shell.h"
@@ skipping 15 matching lines @@
       screen_magnifier_type_(MAGNIFIER_OFF),
       user_logged_in_(true),
       can_lock_screen_(true),
       is_search_key_acting_as_function_key_(false),
       num_exit_requests_(0) {
 }
 
 TestShellDelegate::~TestShellDelegate() {
 }
 
-bool TestShellDelegate::IsUserLoggedIn() {
+bool TestShellDelegate::IsUserLoggedIn() const {
   return user_logged_in_;
 }
 
 bool TestShellDelegate::IsSessionStarted() {
   return session_started_;
 }
 
 bool TestShellDelegate::IsFirstRunAfterBoot() {
   return false;
 }
@@ skipping 166 matching lines @@
   if (!user_logged_in)
     session_started_ = false;
 }
 
 void TestShellDelegate::SetCanLockScreen(bool can_lock_screen) {
   can_lock_screen_ = can_lock_screen;
 }
 
 }  // namespace test
 }  // namespace ash