Refactor content/renderer/accessibility to use AXTreeSerializer (re-land).

content/renderer/accessibility/accessibility_node_serializer.h

Index: content/renderer/accessibility/accessibility_node_serializer.h
diff --git a/content/renderer/accessibility/accessibility_node_serializer.h b/content/renderer/accessibility/accessibility_node_serializer.h
deleted file mode 100644
index a4021e7c3e88fe97d65879da7c0754baa54c2a9f..0000000000000000000000000000000000000000
--- a/content/renderer/accessibility/accessibility_node_serializer.h
+++ /dev/null
@@ -1,23 +0,0 @@
-// 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.
-
-#ifndef CONTENT_RENDERER_ACCESSIBILITY_ACCESSIBILITY_NODE_SERIALIZER_H_
-#define CONTENT_RENDERER_ACCESSIBILITY_ACCESSIBILITY_NODE_SERIALIZER_H_
-
-#include "third_party/WebKit/public/web/WebAXObject.h"
-#include "ui/accessibility/ax_node_data.h"
-
-namespace content {
-
-void SerializeAccessibilityNode(
-    const blink::WebAXObject& src,
-    ui::AXNodeData* dst);
-
-bool ShouldIncludeChildNode(
-    const blink::WebAXObject& parent,
-    const blink::WebAXObject& child);
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_ACCESSIBILITY_ACCESSIBILITY_NODE_SERIALIZER_H_