Stop clamping tabIndex to short range

third_party/WebKit/Source/core/html/HTMLFormControlElement.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 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * 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 388 matching lines @@
 
   // Change of m_wasFocusByMouse may affect shouldHaveFocusAppearance() and
   // LayoutTheme::isFocused().  Inform LayoutTheme if
   // shouldHaveFocusAppearance() changes.
   if (oldShouldHaveFocusAppearance != shouldHaveFocusAppearance() &&
       layoutObject())
     LayoutTheme::theme().controlStateChanged(*layoutObject(),
                                              FocusControlState);
 }
 
-short HTMLFormControlElement::tabIndex() const {
+int HTMLFormControlElement::tabIndex() const {
   // Skip the supportsFocus check in HTMLElement.
   return Element::tabIndex();
 }
 
 bool HTMLFormControlElement::recalcWillValidate() const {
   if (m_dataListAncestorState == Unknown) {
     if (Traversal<HTMLDataListElement>::firstAncestor(*this))
       m_dataListAncestorState = InsideDataList;
     else
       m_dataListAncestorState = NotInsideDataList;
@@ skipping 224 matching lines @@
     dispatchFormControlChangeEvent();
 }
 
 void HTMLFormControlElement::copyNonAttributePropertiesFromElement(
     const Element& source) {
   HTMLElement::copyNonAttributePropertiesFromElement(source);
   setNeedsValidityCheck();
 }
 
 }  // namespace blink