Added battery level and time to the status tray's accessible name.

ash/system/tray/system_tray.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_SYSTEM_TRAY_H_
 #define ASH_SYSTEM_TRAY_SYSTEM_TRAY_H_
 
 #include "ash/ash_export.h"
 #include "ash/system/tray/system_tray_bubble.h"
 #include "ash/system/tray/tray_background_view.h"
@@ skipping 143 matching lines @@
  private:
   // Creates the default set of items for the sytem tray.
   void CreateItems(SystemTrayDelegate* delegate);
 
   // Resets |system_bubble_| and clears any related state.
   void DestroySystemBubble();
 
   // Resets |notification_bubble_| and clears any related state.
   void DestroyNotificationBubble();
 
+  // Returns a string with the current time for accessibility on the status
+  // tray bar.
+  base::string16 GetAccessibleTimeString(const base::Time& now) const;
+
   // Calculates the x-offset for the item in the tray. Returns -1 if its tray
   // item view is not visible.
   int GetTrayXOffset(SystemTrayItem* item) const;
 
   // Shows the default view and its arrow position is shifted by |x_offset|.
   void ShowDefaultViewWithOffset(BubbleCreationType creation_type,
                                  int x_offset,
                                  bool persistent);
 
   // Constructs or re-constructs |system_bubble_| and populates it with |items|.
@@ skipping 53 matching lines @@
 
   TrayAccessibility* tray_accessibility_;  // not owned
   TrayDate* tray_date_;
 
   DISALLOW_COPY_AND_ASSIGN(SystemTray);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_H_