[oilpan] Completely move HTMLFormControlElement's hierarchy to the managed heap

Source/core/html/HTMLInputElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Samsung Electronics. 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
@@ skipping 27 matching lines @@
 class HTMLImageLoader;
 class HTMLOptionElement;
 class Icon;
 class InputType;
 class KURL;
 class ListAttributeTargetObserver;
 struct DateTimeChooserParameters;
 
 class HTMLInputElement : public HTMLTextFormControlElement {
 public:
-    static PassRefPtr<HTMLInputElement> create(const QualifiedName&, Document*, HTMLFormElement*, bool createdByParser);
+    static Result<HTMLInputElement> create(const QualifiedName&, Document*, HTMLFormElement*, bool createdByParser);
     virtual ~HTMLInputElement();
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(webkitspeechchange);
 
-    virtual HTMLInputElement* toInputElement() { return this; }
+    virtual Result<HTMLInputElement> toInputElement() { return Handle<HTMLInputElement>(this); }
 
     virtual bool shouldAutocomplete() const;
 
     // For ValidityState
     virtual bool hasBadInput() const OVERRIDE;
     virtual bool patternMismatch() const OVERRIDE;
     virtual bool rangeUnderflow() const OVERRIDE;
     virtual bool rangeOverflow() const;
     virtual bool stepMismatch() const OVERRIDE;
     virtual bool tooLong() const OVERRIDE;
@@ skipping 134 matching lines @@
 
     String altText() const;
 
     int maxResults() const { return m_maxResults; }
 
     String defaultValue() const;
     void setDefaultValue(const String&);
 
     Vector<String> acceptMIMETypes();
     Vector<String> acceptFileExtensions();
-    String accept() const;

[haraken, 2013/07/17 14:10:23]

This conflicts with our accept(). However, fortunately, this accept() is unused,
so we can just remove it.

[Vyacheslav Egorov (Google), 2013/07/18 16:50:08]

Nice! With this removed we might be even able to rename acceptHeapVisitor into
accept later.

     String alt() const;
 
     void setSize(unsigned);
     void setSize(unsigned, ExceptionCode&);
 
     KURL src() const;
 
     virtual int maxLength() const;
     void setMaxLength(int, ExceptionCode&);
 
@@ skipping 22 matching lines @@
     void updateClearButtonVisibility();
 
     virtual bool willRespondToMouseClickEvents() OVERRIDE;
 
 #if ENABLE(DATALIST_ELEMENT)
     HTMLElement* list() const;
     HTMLDataListElement* dataList() const;
     void listAttributeTargetChanged();
 #endif
 
-    HTMLInputElement* checkedRadioButtonForGroup() const;
+    Result<HTMLInputElement> checkedRadioButtonForGroup() const;
     bool isInRequiredRadioButtonGroup();
 
     // Functions for InputType classes.
     void setValueInternal(const String&, TextFieldEventBehavior);
     bool isTextFormControlKeyboardFocusable(KeyboardEvent*) const;
     bool isTextFormControlMouseFocusable() const;
     bool valueAttributeWasUpdatedAfterParsing() const { return m_valueAttributeWasUpdatedAfterParsing; }
 
     void cacheSelectionInResponseToSetValue(int caretOffset) { cacheSelection(caretOffset, caretOffset, SelectionHasNoDirection); }
 
@@ skipping 29 matching lines @@
     virtual bool matchesReadWritePseudoClass() const OVERRIDE;
     virtual void setRangeText(const String& replacement, ExceptionCode&) OVERRIDE;
     virtual void setRangeText(const String& replacement, unsigned start, unsigned end, const String& selectionMode, ExceptionCode&) OVERRIDE;
 
     bool hasImageLoader() const { return m_imageLoader; }
     HTMLImageLoader* imageLoader();
 
     bool setupDateTimeChooserParameters(DateTimeChooserParameters&);
     virtual void reportMemoryUsage(MemoryObjectInfo*) const OVERRIDE;
 
+    virtual void acceptHeapVisitor(Visitor*) const OVERRIDE;
+
 protected:
     HTMLInputElement(const QualifiedName&, Document*, HTMLFormElement*, bool createdByParser);
 
     virtual void defaultEventHandler(Event*);
 
 private:
     enum AutoCompleteSetting { Uninitialized, On, Off };
 
     // FIXME: Author shadows should be allowed
     // https://bugs.webkit.org/show_bug.cgi?id=92608
@@ skipping 114 matching lines @@
     // that it lives as long as its owning element lives. If we move the loader into
     // the ImageInput object we may delete the loader while this element lives on.
     OwnPtr<HTMLImageLoader> m_imageLoader;
 #if ENABLE(DATALIST_ELEMENT)
     OwnPtr<ListAttributeTargetObserver> m_listAttributeTargetObserver;
 #endif
 };
 
 } //namespace
 #endif