Get rid of AXScrollView and AXScrollbar

content/browser/accessibility/browser_accessibility.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 "content/browser/accessibility/browser_accessibility.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 681 matching lines @@
 bool BrowserAccessibility::IsWebAreaForPresentationalIframe() const {
   if (GetRole() != ui::AX_ROLE_WEB_AREA &&
       GetRole() != ui::AX_ROLE_ROOT_WEB_AREA) {
     return false;
   }
 
   BrowserAccessibility* parent = GetParent();
   if (!parent)
     return false;
 
-  BrowserAccessibility* grandparent = parent->GetParent();
-  if (!grandparent)
-    return false;
-
-  return grandparent->GetRole() == ui::AX_ROLE_IFRAME_PRESENTATIONAL;
+  return parent->GetRole() == ui::AX_ROLE_IFRAME_PRESENTATIONAL;
 }
 
 bool BrowserAccessibility::IsControl() const {
   switch (GetRole()) {
     case ui::AX_ROLE_BUTTON:
     case ui::AX_ROLE_BUTTON_DROP_DOWN:
     case ui::AX_ROLE_CHECK_BOX:
     case ui::AX_ROLE_COLOR_WELL:
     case ui::AX_ROLE_COMBO_BOX:
     case ui::AX_ROLE_DISCLOSURE_TRIANGLE:
@@ skipping 136 matching lines @@
       }
       need_to_offset_web_area = true;
     }
     parent = parent->GetParent();
   }
 
   return bounds;
 }
 
 }  // namespace content