Move AccessibilityDelegate ownership to ash::WmShell

ash/common/system/tray/system_tray.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/common/system/tray/system_tray.h"
 
 #include "ash/common/ash_switches.h"
 #include "ash/common/login_status.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shelf/wm_shelf.h"
@@ skipping 79 matching lines @@
     LoginStatus login_status =
         WmShell::Get()->system_tray_delegate()->GetUserLoginStatus();
     bubble_->InitView(anchor, login_status, init_params);
     bubble_wrapper_.reset(new TrayBubbleWrapper(tray, bubble_->bubble_view()));
     // The system bubble should not have an arrow.
     bubble_->bubble_view()->SetArrowPaintType(views::BubbleBorder::PAINT_NONE);
     is_persistent_ = is_persistent;
 
     // If ChromeVox is enabled, focus the default item if no item is focused and
     // there isn't a delayed close.
-    if (WmShell::Get()->GetAccessibilityDelegate()->IsSpokenFeedbackEnabled() &&
+    if (WmShell::Get()->accessibility_delegate()->IsSpokenFeedbackEnabled() &&
         !is_persistent) {
       bubble_->FocusDefaultIfNeeded();
     }
   }
 
   // Convenience accessors:
   SystemTrayBubble* bubble() const { return bubble_.get(); }
   SystemTrayBubble::BubbleType bubble_type() const {
     return bubble_->bubble_type();
   }
@@ skipping 344 matching lines @@
   SystemTrayBubble::BubbleType bubble_type =
       detailed ? SystemTrayBubble::BUBBLE_TYPE_DETAILED
                : SystemTrayBubble::BUBBLE_TYPE_DEFAULT;
 
   // Destroy the notification bubble here so that it doesn't get rebuilt
   // while we add items to the main bubble_ (e.g. in HideNotificationView).
   notification_bubble_.reset();
   if (system_bubble_.get() && creation_type == BUBBLE_USE_EXISTING) {
     system_bubble_->bubble()->UpdateView(items, bubble_type);
     // If ChromeVox is enabled, focus the default item if no item is focused.
-    if (WmShell::Get()->GetAccessibilityDelegate()->IsSpokenFeedbackEnabled())
+    if (WmShell::Get()->accessibility_delegate()->IsSpokenFeedbackEnabled())
       system_bubble_->bubble()->FocusDefaultIfNeeded();
   } else {
     // Cleanup the existing bubble before showing a new one. Otherwise, it's
     // possible to confuse the new system bubble with the old one during
     // destruction, leading to subtle errors/crashes such as crbug.com/545166.
     DestroySystemBubble();
 
     // Remember if the menu is a single property (like e.g. volume) or the
     // full tray menu. Note that in case of the |BUBBLE_USE_EXISTING| case
     // above, |full_system_tray_menu_| does not get changed since the fact that
@@ skipping 291 matching lines @@
           .work_area()
           .height();
   if (work_area_height > 0) {
     UMA_HISTOGRAM_CUSTOM_COUNTS(
         "Ash.SystemMenu.PercentageOfWorkAreaHeightCoveredByMenu",
         100 * bubble_view->height() / work_area_height, 1, 300, 100);
   }
 }
 
 }  // namespace ash