Use MSAA_Role directly from BrowserAccessibility.

content/browser/accessibility/browser_accessibility_com_win.h

 // Copyright (c) 2017 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 CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_COM_WIN_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_COM_WIN_H_
 
 #include <atlbase.h>
 #include <atlcom.h>
 #include <oleacc.h>
@@ skipping 709 matching lines @@
 
   // Public accessors (these do not have COM accessible accessors)
   const base::string16& role_name() const { return win_attributes_->role_name; }
   const std::map<int, std::vector<base::string16>>& offset_to_text_attributes()
       const {
     return win_attributes_->offset_to_text_attributes;
   }
 
  private:
   // Private accessors.
-  int32_t ia_role() const { return win_attributes_->ia_role; }
   int32_t ia2_role() const { return win_attributes_->ia2_role; }
   int32_t ia2_state() const { return win_attributes_->ia2_state; }
   const std::vector<base::string16>& ia2_attributes() const {
     return win_attributes_->ia2_attributes;
   }
   base::string16 name() const { return win_attributes_->name; }
   base::string16 description() const { return win_attributes_->description; }
   base::string16 value() const { return win_attributes_->value; }
 
   std::map<int32_t, int32_t>& hyperlink_offset_to_index() const {
@@ skipping 178 matching lines @@
       const base::string16& relation_type,
       const base::string16& reverse_relation_type);
   void RemoveTargetFromRelation(const base::string16& relation_type,
                                 int target_id);
 
   // Updates object attributes of IA2 with html attributes.
   void UpdateRequiredAttributes();
 
   // Fire a Windows-specific accessibility event notification on this node.
   void FireNativeEvent(LONG win_event_type) const;
-
-  static bool IsInTreeGrid(const BrowserAccessibility* item);
-
   struct WinAttributes {
     WinAttributes();
     ~WinAttributes();
 
     // IAccessible role and state.
     int32_t ia_role;
     int32_t ia_state;
     base::string16 role_name;
 
     // IAccessible name, description, help, value.
@@ skipping 47 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityComWin);
 };
 
 CONTENT_EXPORT BrowserAccessibilityComWin* ToBrowserAccessibilityComWin(
     BrowserAccessibility* obj);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_COM_WIN_H_