A11y: Add a browser test of TrayAccessibility.

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/power/power_supply_status.h"
 #include "ash/system/tray/system_tray_bubble.h"
@@ skipping 29 matching lines @@
 #if defined(OS_CHROMEOS)
 class NetworkObserver;
 class SmsObserver;
 #endif
 
 class SystemTrayItem;
 
 namespace internal {
 class SystemBubbleWrapper;
 class SystemTrayContainer;
+class TrayAccessibility;
 class TrayGestureHandler;
 }
 
 // There are different methods for creating bubble views.
 enum BubbleCreationType {
   BUBBLE_CREATE_NEW,    // Closes any existing bubble and creates a new one.
   BUBBLE_USE_EXISTING,  // Uses any existing bubble, or creates a new one.
 };
 
 class ASH_EXPORT SystemTray : public internal::TrayBackgroundView,
@@ skipping 76 matching lines @@
   // Overridden from message_center::TrayBubbleView::Delegate.
   virtual void BubbleViewDestroyed() OVERRIDE;
   virtual void OnMouseEnteredView() OVERRIDE;
   virtual void OnMouseExitedView() OVERRIDE;
   virtual string16 GetAccessibleNameForBubble() OVERRIDE;
   virtual gfx::Rect GetAnchorRect(views::Widget* anchor_widget,
                                   AnchorType anchor_type,
                                   AnchorAlignment anchor_alignment) OVERRIDE;
   virtual void HideBubble(const views::TrayBubbleView* bubble_view) OVERRIDE;
 
+  internal::TrayAccessibility* GetTrayAccessibilityForTest() {
+    return tray_accessibility_;
+  }
+
  private:
   // Creates the default set of items for the sytem tray.
   void CreateItems(SystemTrayDelegate* delegate);
 
   // Returns true if the system_bubble_ exists and is of type |type|.
   bool HasSystemBubbleType(internal::SystemTrayBubble::BubbleType type);
 
   // Resets |system_bubble_| and clears any related state.
   void DestroySystemBubble();
 
@@ skipping 41 matching lines @@
   scoped_ptr<internal::SystemBubbleWrapper> notification_bubble_;
 
   // Keep track of the default view height so that when we create detailed
   // views directly (e.g. from a notification) we know what height to use.
   int default_bubble_height_;
 
   // Set to true when system notifications should be hidden (e.g. web
   // notification bubble is visible).
   bool hide_notifications_;
 
+  internal::TrayAccessibility* tray_accessibility_;  // not owned
+
   DISALLOW_COPY_AND_ASSIGN(SystemTray);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_H_