Reports the position of the caret and current selection in content editables.

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 <map>
 #include <utility>
 #include <vector>
@@ skipping 47 matching lines @@
   // Called after the object is first initialized and again every time
   // its data changes.
   virtual void OnDataChanged() {}
 
   virtual void OnSubtreeWillBeDeleted() {}
 
   // Called when the location changed.
   virtual void OnLocationChanged() {}
 
   // Return true if this object is equal to or a descendant of |ancestor|.
-  bool IsDescendantOf(BrowserAccessibility* ancestor);
+  bool IsDescendantOf(const BrowserAccessibility* ancestor) const;
 
   // Returns true if this is a leaf node on this platform, meaning any
   // children should not be exposed to this platform's native accessibility
   // layer. Each platform subclass should implement this itself.
   // The definition of a leaf may vary depending on the platform,
   // but a leaf node should never have children that are focusable or
   // that might send notifications.
   virtual bool PlatformIsLeaf() const;
 
   // Returns the number of children of this object, or 0 if PlatformIsLeaf()
@@ skipping 214 matching lines @@
   // its nearest scrollable ancestor) to local bounds (which are relative
   // to the top of the web accessibility tree).
   gfx::Rect ElementBoundsToLocalBounds(gfx::Rect bounds) const;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibility);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_