Re-land (2): Fix loading accessibility tree for child frame that's already loaded.

content/browser/accessibility/dump_accessibility_browsertest_base.h

 // Copyright 2014 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 <string>
 #include <vector>
 
 #include "base/debug/leak_annotations.h"
 #include "base/strings/string16.h"
 #include "build/build_config.h"
@@ skipping 89 matching lines @@
 #if defined(LEAK_SANITIZER) && !defined(OS_NACL)
   // http://crbug.com/568674
   ScopedLeakSanitizerDisabler lsan_disabler;
 #endif
 
   // The current AccessibilityTreeFormatter.
   std::unique_ptr<AccessibilityTreeFormatter> formatter_;
 
   // Whether we're doing a native pass or internal/blink tree pass.
   bool is_blink_pass_;
+
+  // Whether we should enable accessibility after navigating to the page,
+  // otherwise we enable it first.
+  bool enable_accessibility_after_navigating_;
 };
 
 }  // namespace content