[Oilpan] Prepare full definition of classes before using Member

third_party/WebKit/Source/core/html/FormAssociatedElement.cpp

Index: third_party/WebKit/Source/core/html/FormAssociatedElement.cpp
diff --git a/third_party/WebKit/Source/core/html/FormAssociatedElement.cpp b/third_party/WebKit/Source/core/html/FormAssociatedElement.cpp
index d98ae0a153db67633229202f8d699ad27d6fb2da..00acd8a406c73f451079f4a0339897464b60850c 100644
--- a/third_party/WebKit/Source/core/html/FormAssociatedElement.cpp
+++ b/third_party/WebKit/Source/core/html/FormAssociatedElement.cpp
@@ -130,6 +130,11 @@ HTMLFormElement* FormAssociatedElement::findAssociatedForm(const HTMLElement* el
     return element->findFormAncestor();
 }
 
+HTMLFormElement* FormAssociatedElement::form() const
+{
+    return m_form.get();
+}
+
 void FormAssociatedElement::formRemovedFromTree(const Node& formRoot)
 {
     ASSERT(m_form);