HTMLSelectElement size type changed to unsigned

Source/core/html/HTMLSelectElement.h

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * 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, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. 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
@@ skipping 44 matching lines @@
     void optionSelectedByUser(int index, bool dispatchChangeEvent, bool allowMultipleSelection = false);
 
     // For ValidityState
     virtual String validationMessage() const override;
     virtual bool valueMissing() const override;
 
     virtual void resetImpl() override;
 
     unsigned length() const;
 
-    int size() const { return m_size; }
+    unsigned size() const { return m_size; }
     bool multiple() const { return m_multiple; }
 
     bool usesMenuList() const;
 
     void add(const HTMLOptionElementOrHTMLOptGroupElement&, const HTMLElementOrLong&, ExceptionState&);
 
     using Node::remove;
     void remove(int index);
 
     String value() const;
@@ skipping 10 matching lines @@
     void invalidateSelectedItems();
     void updateListItemSelectedStates();
 
     const WillBeHeapVector<RawPtrWillBeMember<HTMLElement>>& listItems() const;
 
     virtual void accessKeyAction(bool sendMouseEvents) override;
     void accessKeySetSelectedIndex(int);
 
     void setMultiple(bool);
 
-    void setSize(int);
+    void setSize(unsigned);
 
     void setOption(unsigned index, HTMLOptionElement*, ExceptionState&);
     void setLength(unsigned, ExceptionState&);
 
     Element* namedItem(const AtomicString& name);
     HTMLOptionElement* item(unsigned index);
 
     void scrollToSelection();
     void scrollToIndex(int listIndex);
 
@@ skipping 107 matching lines @@
     // TypeAheadDataSource functions.
     virtual int indexOfSelectedOption() const override;
     virtual int optionCount() const override;
     virtual String optionAtIndex(int index) const override;
 
     // m_listItems contains HTMLOptionElement, HTMLOptGroupElement, and HTMLHRElement objects.
     mutable WillBeHeapVector<RawPtrWillBeMember<HTMLElement>> m_listItems;
     Vector<bool> m_lastOnChangeSelection;
     Vector<bool> m_cachedStateForActiveSelection;
     TypeAhead m_typeAhead;
-    int m_size;
+    unsigned m_size;
     int m_lastOnChangeIndex;
     int m_activeSelectionAnchorIndex;
     int m_activeSelectionEndIndex;
     bool m_isProcessingUserDrivenChange;
     bool m_multiple;
     bool m_activeSelectionState;
     mutable bool m_shouldRecalcListItems;
     int m_suggestedIndex;
     bool m_isAutofilledByPreview;
 };
 
 } // namespace blink
 
 #endif // HTMLSelectElement_h