Add DumpAccessibilityEvents test framework.

content/browser/accessibility/accessibility_tree_formatter.h

Index: content/browser/accessibility/accessibility_tree_formatter.h
diff --git a/content/browser/accessibility/accessibility_tree_formatter.h b/content/browser/accessibility/accessibility_tree_formatter.h
index 39c6a4aa283c5473bad3c24ccbcfeb2a8346a49c..8db914a9fa5433b24957ce55b8934d56819dfdbb 100644
--- a/content/browser/accessibility/accessibility_tree_formatter.h
+++ b/content/browser/accessibility/accessibility_tree_formatter.h
@@ -27,8 +27,28 @@ class CONTENT_EXPORT AccessibilityTreeFormatter {
   explicit AccessibilityTreeFormatter(BrowserAccessibility* root);
   virtual ~AccessibilityTreeFormatter();
 
+  // A single filter specification. See GetAllowString() and GetDenyString()
+  // for more information.
+  struct Filter {
+    enum Type {
+      ALLOW,
+      ALLOW_EMPTY,
+      DENY
+    };
+    base::string16 match_str;
+    Type type;
+
+    Filter(base::string16 match_str, Type type)
+        : match_str(match_str), type(type) {}
+  };
+
   static AccessibilityTreeFormatter* Create(WebContents* wc);
 
+  static bool MatchesFilters(
+      const std::vector<Filter>& filters,
+      const base::string16& text,
+      bool default_result);
+
   // Populates the given DictionaryValue with the accessibility tree.
   // The dictionary contains a key/value pair for each attribute of the node,
   // plus a "children" attribute containing a list of all child nodes.
@@ -54,25 +74,14 @@ class CONTENT_EXPORT AccessibilityTreeFormatter {
   // Dumps a BrowserAccessibility tree into a string.
   void FormatAccessibilityTree(base::string16* contents);
 
-  // A single filter specification. See GetAllowString() and GetDenyString()
-  // for more information.
-  struct Filter {
-    enum Type {
-      ALLOW,
-      ALLOW_EMPTY,
-      DENY
-    };
-    base::string16 match_str;
-    Type type;
-
-    Filter(base::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);
 
+  // If true, the internal accessibility id of each node will be included
+  // in its output.
+  void set_show_ids(bool show_ids) { show_ids_ = show_ids; }
+
   // Suffix of the expectation file corresponding to html file.
   // Example:
   // HTML test:      test-file.html
@@ -119,10 +128,7 @@ class CONTENT_EXPORT AccessibilityTreeFormatter {
                                    const base::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).
-  base::string16 ToString(const base::DictionaryValue& node,
-                          const base::string16& indent);
+  base::string16 ToString(const base::DictionaryValue& node);
 
   void Initialize();
 
@@ -141,6 +147,9 @@ class CONTENT_EXPORT AccessibilityTreeFormatter {
   // Filters used when formatting the accessibility tree as text.
   std::vector<Filter> filters_;
 
+  // Whether or not node ids should be included in the dump.
+  bool show_ids_;
+
   DISALLOW_COPY_AND_ASSIGN(AccessibilityTreeFormatter);
 };