Convert TrayAccessibility to wm common types

chrome/browser/ui/ash/system_tray_delegate_chromeos.cc

 // Copyright 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/system_tray_delegate_chromeos.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <set>
@@ skipping 1114 matching lines @@
   }
 }
 
 void SystemTrayDelegateChromeOS::OnLanguageRemapSearchKeyToChanged() {
   search_key_mapped_to_ = user_pref_registrar_->prefs()->GetInteger(
       prefs::kLanguageRemapSearchKeyTo);
 }
 
 void SystemTrayDelegateChromeOS::OnAccessibilityModeChanged(
     ui::AccessibilityNotificationVisibility notify) {
-  GetSystemTrayNotifier()->NotifyAccessibilityModeChanged(notify);
+  GetWmSystemTrayNotifier()->NotifyAccessibilityModeChanged(notify);
 }
 
 void SystemTrayDelegateChromeOS::UpdatePerformanceTracing() {
   if (!user_pref_registrar_)
     return;
   bool value = user_pref_registrar_->prefs()->GetBoolean(
       prefs::kPerformanceTracingEnabled);
   GetSystemTrayNotifier()->NotifyTracingModeChanged(value);
 }
 
@@ skipping 194 matching lines @@
   LOG(WARNING) << "SystemTrayDelegateChromeOS::GetChildUserMessage call while "
                << "ENABLE_SUPERVISED_USERS undefined.";
   return base::string16();
 }
 
 ash::SystemTrayDelegate* CreateSystemTrayDelegate() {
   return new SystemTrayDelegateChromeOS();
 }
 
 }  // namespace chromeos