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

ash/test/test_shell_delegate.cc

Index: ash/test/test_shell_delegate.cc
diff --git a/ash/test/test_shell_delegate.cc b/ash/test/test_shell_delegate.cc
index e3aac464b1ddcbcb2fed66c17444e06a69e38955..4af4eb37a3bc0e65de6e33d40899c9ec815ab27a 100644
--- a/ash/test/test_shell_delegate.cc
+++ b/ash/test/test_shell_delegate.cc
@@ -33,19 +33,19 @@ TestShellDelegate::TestShellDelegate()
 TestShellDelegate::~TestShellDelegate() {
 }
 
-bool TestShellDelegate::IsUserLoggedIn() {
+bool TestShellDelegate::IsUserLoggedIn() const {
   return user_logged_in_;
 }
 
-bool TestShellDelegate::IsSessionStarted() {
+bool TestShellDelegate::IsSessionStarted() const {
   return session_started_;
 }
 
-bool TestShellDelegate::IsFirstRunAfterBoot() {
+bool TestShellDelegate::IsFirstRunAfterBoot() const {
   return false;
 }
 
-bool TestShellDelegate::CanLockScreen() {
+bool TestShellDelegate::CanLockScreen() const {
   return user_logged_in_ && can_lock_screen_;
 }