Have InputType factories take an HTMLInputElement reference in parameter

Source/core/html/forms/BaseButtonInputType.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 47 matching lines @@
     static inline PassRefPtr<NonSelectableText> create(Document& document, const String& data)
     {
         return adoptRef(new NonSelectableText(document, data));
     }
 };
 
 // ----------------------------
 
 void BaseButtonInputType::createShadowSubtree()
 {
-    ASSERT(element()->userAgentShadowRoot());
-    RefPtr<Text> text = NonSelectableText::create(element()->document(), element()->valueWithDefault());
-    element()->userAgentShadowRoot()->appendChild(text);
+    ASSERT(element().userAgentShadowRoot());
+    RefPtr<Text> text = NonSelectableText::create(element().document(), element().valueWithDefault());
+    element().userAgentShadowRoot()->appendChild(text);
 }
 
 void BaseButtonInputType::valueAttributeChanged()
 {
-    toText(element()->userAgentShadowRoot()->firstChild())->setData(element()->valueWithDefault());
+    toText(element().userAgentShadowRoot()->firstChild())->setData(element().valueWithDefault());
 }
 
 bool BaseButtonInputType::shouldSaveAndRestoreFormControlState() const
 {
     return false;
 }
 
 bool BaseButtonInputType::appendFormData(FormDataList&, bool) const
 {
     // Buttons except overridden types are never successful.
     return false;
 }
 
 RenderObject* BaseButtonInputType::createRenderer(RenderStyle*) const
 {
-    return new RenderButton(element());
+    return new RenderButton(&element());
 }
 
 bool BaseButtonInputType::storesValueSeparateFromAttribute()
 {
     return false;
 }
 
 void BaseButtonInputType::setValue(const String& sanitizedValue, bool, TextFieldEventBehavior)
 {
-    element()->setAttribute(valueAttr, sanitizedValue);
+    element().setAttribute(valueAttr, sanitizedValue);
 }
 
 } // namespace WebCore