Removed CORE_EXPORT from APIs at NodeTraversal.

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

Index: third_party/WebKit/Source/core/html/forms/RadioInputType.cpp
diff --git a/third_party/WebKit/Source/core/html/forms/RadioInputType.cpp b/third_party/WebKit/Source/core/html/forms/RadioInputType.cpp
index b724f71f28dd038db54749a969efed7184630f3f..29e8ed420960f40892af0dbce40883a45b071e53 100644
--- a/third_party/WebKit/Source/core/html/forms/RadioInputType.cpp
+++ b/third_party/WebKit/Source/core/html/forms/RadioInputType.cpp
@@ -211,4 +211,16 @@ 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