[SVG2] Add tabindex handling in svg.

Source/core/svg/SVGElement.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  * Copyright (C) 2009 Apple 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
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 33 matching lines @@
 class SVGElementRareData;
 class SVGFitToViewBox;
 class SVGSVGElement;
 
 void mapAttributeToCSSProperty(HashMap<StringImpl*, CSSPropertyID>* propertyNameToIdMap, const QualifiedName& attrName);
 
 class SVGElement : public Element {
 public:
     virtual ~SVGElement();
 
+    virtual short tabIndex() const OVERRIDE;
+    virtual bool supportsFocus() const OVERRIDE { return false; }
+
     bool isOutermostSVGSVGElement() const;
 
     virtual String title() const OVERRIDE;
     bool hasRelativeLengths() const { return !m_elementsWithRelativeLengths.isEmpty(); }
     static bool isAnimatableCSSProperty(const QualifiedName&);
     enum CTMScope {
         NearestViewportScope, // Used by SVGGraphicsElement::getCTM()
         ScreenScope, // Used by SVGGraphicsElement::getScreenCTM()
         AncestorScope // Used by SVGSVGElement::get{Enclosure|Intersection}List()
     };
@@ skipping 124 matching lines @@
 private:
     friend class SVGElementInstance;
 
     // FIXME: Author shadows should be allowed
     // https://bugs.webkit.org/show_bug.cgi?id=77938
     virtual bool areAuthorShadowsAllowed() const OVERRIDE FINAL { return false; }
 
     RenderStyle* computedStyle(PseudoId = NOPSEUDO);
     virtual RenderStyle* virtualComputedStyle(PseudoId pseudoElementSpecifier = NOPSEUDO) OVERRIDE FINAL { return computedStyle(pseudoElementSpecifier); }
     virtual void willRecalcStyle(StyleRecalcChange) OVERRIDE;
-    virtual bool isKeyboardFocusable() const OVERRIDE;
 
     void buildPendingResourcesIfNeeded();
 
     void mapInstanceToElement(SVGElementInstance*);
     void removeInstanceMapping(SVGElementInstance*);
 
+    bool supportsSpatialNavigationFocus() const;
+
     HashSet<SVGElement*> m_elementsWithRelativeLengths;
 
     typedef HashMap<QualifiedName, RefPtr<SVGAnimatedPropertyBase> > AttributeToPropertyMap;
     AttributeToPropertyMap m_newAttributeToPropertyMap;
 
 #if !ASSERT_DISABLED
     bool m_inRelativeLengthClientsInvalidation;
 #endif
     unsigned m_isContextElement : 1;
     unsigned m_hasSVGRareData : 1;
@@ skipping 13 matching lines @@
     static bool equal(const QualifiedName& a, const QualifiedName& b) { return a.matches(b); }
 };
 
 DEFINE_ELEMENT_TYPE_CASTS(SVGElement, isSVGElement());
 
 template <> inline bool isElementOfType<const SVGElement>(const Node& node) { return node.isSVGElement(); }
 
 }
 
 #endif