Add accessibility related notification to notification center

ash/system/tray_accessibility.h

 // 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.
 
 #ifndef ASH_SYSTEM_TRAY_ACCESSIBILITY_H_
 #define ASH_SYSTEM_TRAY_ACCESSIBILITY_H_
 
 #include <stdint.h>
 
 #include "ash/accessibility_delegate.h"
 #include "ash/system/accessibility_observer.h"
 #include "ash/system/tray/tray_details_view.h"
 #include "ash/system/tray/tray_image_item.h"
 #include "base/macros.h"
 #include "ui/gfx/font.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/view.h"
 
 namespace chromeos {
 class TrayAccessibilityTest;
 }
 
 namespace views {
 class Button;
 class CustomButton;
-class Label;
 class View;
 }
 
 namespace ash {
 class SystemTrayItem;
 
 namespace tray {
 
-// A view for closable notification views, laid out like:
-//  -------------------
-// | icon  contents  x |
-//  ----------------v--
-// The close button will call OnClose() when clicked.
-class AccessibilityPopupView : public views::View {
- public:
-  explicit AccessibilityPopupView(uint32_t enabled_state_bits);
-
-  const views::Label* label_for_test() const { return label_; }
-
-  void Init();
-
- private:
-  views::Label* CreateLabel(uint32_t enabled_state_bits);
-
-  views::Label* label_;
-
-  DISALLOW_COPY_AND_ASSIGN(AccessibilityPopupView);
-};
-
 // Create the detailed view of accessibility tray.
 class AccessibilityDetailedView : public TrayDetailsView {
  public:
   explicit AccessibilityDetailedView(SystemTrayItem* owner);
   ~AccessibilityDetailedView() override {}
 
  private:
   // TrayDetailsView:
   void HandleViewClicked(views::View* view) override;
   void HandleButtonPressed(views::Button* sender,
@@ skipping 59 matching lines @@
   views::View* CreateDetailedView(LoginStatus status) override;
   void DestroyDefaultView() override;
   void DestroyDetailedView() override;
   void UpdateAfterLoginStatusChange(LoginStatus status) override;
 
   // Overridden from AccessibilityObserver.
   void OnAccessibilityModeChanged(
       AccessibilityNotificationVisibility notify) override;
 
   views::View* default_;
-  tray::AccessibilityPopupView* detailed_popup_;
   tray::AccessibilityDetailedView* detailed_menu_;
 
-  // Bitmap of fvalues from AccessibilityState.  Can contain any or
-  // both of A11Y_SPOKEN_FEEDBACK A11Y_BRAILLE_DISPLAY_CONNECTED.
-  uint32_t request_popup_view_state_;
-
   bool tray_icon_visible_;
   LoginStatus login_;
 
   // Bitmap of values from AccessibilityState enum.
   uint32_t previous_accessibility_state_;
 
   // A11y feature status on just entering the lock screen.
   bool show_a11y_menu_on_lock_screen_;
 
   friend class chromeos::TrayAccessibilityTest;
   DISALLOW_COPY_AND_ASSIGN(TrayAccessibility);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_ACCESSIBILITY_H_