Don't require expectations file for DumpAccessibility tests.

content/browser/accessibility/accessibility_tree_formatter.cc

 // 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.
 
 #include "content/browser/accessibility/accessibility_tree_formatter.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/pattern.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 97 matching lines @@
     const base::DictionaryValue& node) {
   int id_value;
   node.GetInteger("id", &id_value);
   return base::IntToString16(id_value);
 }
 
 void AccessibilityTreeFormatter::Initialize() {}
 
 // static
 const base::FilePath::StringType
-AccessibilityTreeFormatter::GetActualFileSuffix() {
-  return base::FilePath::StringType();
-}
-
-// static
-const base::FilePath::StringType
 AccessibilityTreeFormatter::GetExpectedFileSuffix() {
   return base::FilePath::StringType();
 }
 
 // static
 const std::string AccessibilityTreeFormatter::GetAllowEmptyString() {
   return std::string();
 }
 
 // static
@@ skipping 58 matching lines @@
   if (attr.empty())
     return;
   if (!MatchesFilters(attr, include_by_default))
     return;
   if (!line->empty())
     *line += base::ASCIIToUTF16(" ");
   *line += attr;
 }
 
 }  // namespace content