Removed CORE_EXPORT from APIs at NodeTraversal.

third_party/WebKit/Source/core/html/forms/RadioInputType.cpp

 /*
  * Copyright (C) 2005, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 193 matching lines @@
     m_isInClickHandler = false;
     // The work we did in willDispatchClick was default handling.
     event->setDefaultHandled();
 }
 
 bool RadioInputType::shouldAppearIndeterminate() const
 {
     return !element().checkedRadioButtonForGroup();
 }
 
+HTMLInputElement* RadioInputType::nextRadioButtonInGroup(HTMLInputElement* current, bool forward)
+{
+    for (HTMLElement* htmlElement = nextElement(*current, current->form(), forward); htmlElement; htmlElement = nextElement(*htmlElement, current->form(), forward)) {
+        if (!isHTMLInputElement(*htmlElement))
+            continue;
+        HTMLInputElement* inputElement = toHTMLInputElement(htmlElement);
+        if (current->form() == inputElement->form() && inputElement->type() == InputTypeNames::radio && inputElement->name() == current->name())
+            return inputElement;
+    }
+    return nullptr;
+}
+
 } // namespace blink