Native Android accessibility.

content/browser/accessibility/accessibility_tree_formatter.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_ACCESSIBILITY_TREE_FORMATTER_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_ACCESSIBILITY_TREE_FORMATTER_H_
 
 #include <vector>
 
 #include "base/files/file_path.h"
@@ skipping 94 matching lines @@
   void RecursiveBuildAccessibilityTree(const BrowserAccessibility& node,
                                        DictionaryValue* tree_node);
   void RecursiveFormatAccessibilityTree(const DictionaryValue& tree_node,
                                         string16* contents,
                                         int depth = 0);
 
   // Overridden by each platform to add the required attributes for each node
   // into the given dict.
   void AddProperties(const BrowserAccessibility& node, DictionaryValue* dict);
 
+  // Returns true by default; can be overridden by the platform to
+  // prune some children from the tree when they wouldn't be exposed
+  // natively on that platform.
+  virtual bool IncludeChildren(const BrowserAccessibility& node);
+
   string16 FormatCoordinates(const char* name,
                              const char* x_name,
                              const char* y_name,
                              const DictionaryValue& value);
 
   // Returns a platform specific representation of a BrowserAccessibility.
   // Should be zero or more complete lines, each with |prefix| prepended
   // (to indent each line).
   string16 ToString(const DictionaryValue& node, const string16& indent);
 
@@ skipping 13 matching lines @@
 
   // Filters used when formatting the accessibility tree as text.
   std::vector<Filter> filters_;
 
   DISALLOW_COPY_AND_ASSIGN(AccessibilityTreeFormatter);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_ACCESSIBILITY_TREE_FORMATTER_H_