Revert 186229

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"
-#include "base/string16.h"
-#include "base/utf_string_conversions.h"
-#include "content/browser/accessibility/browser_accessibility.h"
-#include "content/common/content_export.h"
-
-namespace content {
-
-class RenderViewHost;
-
-// A utility class for formatting platform-specific accessibility information,
-// for use in testing, debugging, and developer tools.
-// This is extended by a subclass for each platform where accessibility is
-// implemented.
-class CONTENT_EXPORT AccessibilityTreeFormatter {
- public:
-  explicit AccessibilityTreeFormatter(BrowserAccessibility* node);
-  virtual ~AccessibilityTreeFormatter();
-
-  static AccessibilityTreeFormatter* Create(RenderViewHost* rvh);
-
-  // Dumps a BrowserAccessibility tree into a string.
-  void FormatAccessibilityTree(string16* contents);
-
-  // A single filter specification. See GetAllowString() and GetDenyString()
-  // for more information.
-  struct Filter {
-    enum Type {
-      ALLOW,
-      ALLOW_EMPTY,
-      DENY
-    };
-    string16 match_str;
-    Type type;
-
-    Filter(string16 match_str, Type type)
-        : match_str(match_str), type(type) {}
-  };
-
-  // Set regular expression filters that apply to each component of every
-  // line before it's output.
-  void SetFilters(const std::vector<Filter>& filters);
-
-  // Suffix of the expectation file corresponding to html file.
-  // Example:
-  // HTML test:      test-file.html
-  // Expected:       test-file-expected-mac.txt.
-  // Auto-generated: test-file-actual-mac.txt
-  static const base::FilePath::StringType GetActualFileSuffix();
-  static const base::FilePath::StringType GetExpectedFileSuffix();
-
-  // A platform-specific string that indicates a given line in a file
-  // is an allow-empty, allow or deny filter. Example:
-  // Mac values:
-  //   GetAllowEmptyString() -> "@MAC-ALLOW-EMPTY:"
-  //   GetAllowString() -> "@MAC-ALLOW:"
-  //   GetDenyString() -> "@MAC-DENY:"
-  // Example html:
-  // <!--
-  // @MAC-ALLOW-EMPTY:description*
-  // @MAC-ALLOW:roleDescription*
-  // @MAC-DENY:subrole*
-  // -->
-  // <p>Text</p>
-  static const std::string GetAllowEmptyString();
-  static const std::string GetAllowString();
-  static const std::string GetDenyString();
-
- protected:
-  void RecursiveFormatAccessibilityTree(BrowserAccessibility* node,
-                                        string16* contents,
-                                        int indent);
-
-  // 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(BrowserAccessibility* node, char* prefix);
-
-  void Initialize();
-
-  bool MatchesFilters(const string16& text, bool default_result) const;
-  void StartLine();
-  void Add(bool include_by_default, const string16& attr);
-  string16 FinishLine();
-
-  BrowserAccessibility* node_;
-  std::vector<Filter> filters_;
-  string16 line_;
-
-  DISALLOW_COPY_AND_ASSIGN(AccessibilityTreeFormatter);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_ACCESSIBILITY_ACCESSIBILITY_TREE_FORMATTER_H_