Move Form Association Code to FormAssociated::associateWith

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved.
@@ skipping 1458 matching lines @@
 
 void HTMLInputElement::onSearch() {
   m_inputType->dispatchSearchEvent();
 }
 
 void HTMLInputElement::updateClearButtonVisibility() {
   m_inputTypeView->updateClearButtonVisibility();
 }
 
 void HTMLInputElement::willChangeForm() {
-  removeFromRadioButtonGroup();
+  if (m_inputType)
+    removeFromRadioButtonGroup();
   TextControlElement::willChangeForm();
 }
 
 void HTMLInputElement::didChangeForm() {
   TextControlElement::didChangeForm();
-  addToRadioButtonGroup();
+  if (m_inputType)
+    addToRadioButtonGroup();
 }
 
 Node::InsertionNotificationRequest HTMLInputElement::insertedInto(
     ContainerNode* insertionPoint) {
   TextControlElement::insertedInto(insertionPoint);
   if (insertionPoint->isConnected() && !form())
     addToRadioButtonGroup();
   resetListAttributeTargetObserver();
   logAddElementIfIsolatedWorldAndInDocument("input", typeAttr, formactionAttr);
   return InsertionShouldCallDidNotifySubtreeInsertions;
@@ skipping 395 matching lines @@
 
 bool HTMLInputElement::hasFallbackContent() const {
   return m_inputTypeView->hasFallbackContent();
 }
 
 void HTMLInputElement::setFilesFromPaths(const Vector<String>& paths) {
   return m_inputType->setFilesFromPaths(paths);
 }
 
 }  // namespace blink