Test delegate_ in TrayBubbleView::GetAccessibleState

ui/views/bubble/tray_bubble_view.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 "ui/views/bubble/tray_bubble_view.h"
 
 #include <algorithm>
 
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkColor.h"
@@ skipping 378 matching lines @@
   if (delegate_)
     delegate_->OnMouseEnteredView();
 }
 
 void TrayBubbleView::OnMouseExited(const ui::MouseEvent& event) {
   if (delegate_)
     delegate_->OnMouseExitedView();
 }
 
 void TrayBubbleView::GetAccessibleState(ui::AccessibleViewState* state) {
-  if (params_.can_activate) {
+  if (delegate_ && params_.can_activate) {
     state->role = ui::AccessibilityTypes::ROLE_WINDOW;
     state->name = delegate_->GetAccessibleNameForBubble();
   }
 }
 
 void TrayBubbleView::ChildPreferredSizeChanged(View* child) {
   SizeToContents();
 }
 
 void TrayBubbleView::ViewHierarchyChanged(
     const ViewHierarchyChangedDetails& details) {
   if (get_use_acceleration_when_possible() && details.is_add &&
       details.child == this) {
     details.parent->SetPaintToLayer(true);
     details.parent->SetFillsBoundsOpaquely(true);
     details.parent->layer()->SetMasksToBounds(true);
   }
 }
 
 }  // namespace views