Expose internal treegrid role, do some cleanup for table/grid/treegrid handling

content/browser/accessibility/browser_accessibility.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 CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 344 matching lines @@
 
   virtual base::string16 GetText() const;
 
   // Returns true if the bit corresponding to the given state enum is 1.
   bool HasState(ui::AXState state_enum) const;
 
   // Returns true if this node is a cell or a table header.
   bool IsCellOrTableHeaderRole() const;
 
   // Returns true if this node is a table, a grid or a treegrid.
-  bool IsTableOrGridOrTreeGridRole() const;
+  bool IsTableLikeRole() const;
 
   // Returns true if the caret is active on this object.
   bool HasCaret() const;
 
   // True if this is a web area, and its grandparent is a presentational iframe.
   bool IsWebAreaForPresentationalIframe() const;
 
   virtual bool IsClickable() const;
   bool IsControl() const;
   bool IsMenuRelated() const;
@@ skipping 60 matching lines @@
   // bounds, but "virtual" elements in the accessibility tree that don't
   // correspond to a layed-out element sometimes don't have bounds.
   void FixEmptyBounds(gfx::RectF* bounds) const;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibility);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_