mash: Move accessibility_types.h from ui namespace to ash namespace

ash/system/ime/tray_ime_chromeos.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/system/ime/tray_ime_chromeos.h"
 
 #include <vector>
 
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/system/tray/hover_highlight_view.h"
@@ skipping 240 matching lines @@
   Shell::GetInstance()->system_tray_notifier()->RemoveVirtualKeyboardObserver(
       this);
 }
 
 void TrayIME::OnKeyboardSuppressionChanged(bool suppressed) {
   keyboard_suppressed_ = suppressed;
   Update();
 }
 
 void TrayIME::OnAccessibilityModeChanged(
-    ui::AccessibilityNotificationVisibility notify) {
+    AccessibilityNotificationVisibility notify) {
   Update();
 }
 
 void TrayIME::Update() {
   UpdateTrayLabel(current_ime_, ime_list_.size());
   if (default_) {
     default_->SetVisible(ShouldDefaultViewBeVisible());
     default_->UpdateLabel(GetDefaultViewLabel(ime_list_.size() > 1));
   }
   if (detailed_)
@@ skipping 103 matching lines @@
   else
     Update();
 }
 
 bool TrayIME::ShouldDefaultViewBeVisible() {
   return is_visible_ && (ime_list_.size() > 1 || property_list_.size() > 1 ||
                          ShouldShowKeyboardToggle());
 }
 
 }  // namespace ash