Add error dispatch events to SVGStyleElement

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, 2014 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 85 matching lines @@
     virtual void svgAttributeChanged(const QualifiedName&);
 
     PassRefPtrWillBeRawPtr<SVGAnimatedPropertyBase> propertyFromAttribute(const QualifiedName& attributeName);
     static AnimatedPropertyType animatedPropertyTypeForCSSAttribute(const QualifiedName& attributeName);
 
     void sendSVGLoadEventToSelfAndAncestorChainIfPossible();
     bool sendSVGLoadEventIfPossible();
     void sendSVGLoadEventIfPossibleAsynchronously();
     void svgLoadEventTimerFired(Timer<SVGElement>*);
     virtual Timer<SVGElement>* svgLoadEventTimer();
+    bool sendSVGErrorEventIfPossible();

[pdr., 2015/03/31 03:01:43]

Should this be void instead of bool?

[jww, 2015/03/31 21:31:42]

Yes, although this goes away given fs@'s comments below.

+    void sendSVGErrorEventIfPossibleAsynchronously();
+    void svgErrorEventTimerFired(Timer<SVGElement>*);
+    virtual Timer<SVGElement>* svgErrorEventTimer();

[pdr., 2015/03/31 03:01:43]

Can you put the above 4 functions (err, it will be 3) on SVGStyleElement?

I thought they might be here for sharing with SVGScriptElement, but it looks
like that would go through shared code with ScriptLoader.

[fs, 2015/03/31 09:03:38]

Agreed - with the below twist.
Could we try using EventSender and Co. instead to converge (rather than diverge)
with HTMLStyleElement? The 'load' event crazies may have shaped the current
solution, but I don't think we should be basing "new" stuff on that structure.

[jww, 2015/03/31 21:31:42]

Done.

 
     virtual AffineTransform* animateMotionTransform() { return 0; }
 
     void invalidateSVGAttributes() { ensureUniqueElementData().m_animatedSVGAttributesAreDirty = true; }
     void invalidateSVGPresentationAttributeStyle() { ensureUniqueElementData().m_presentationAttributeStyleIsDirty = true; }
     void addSVGLengthPropertyToPresentationAttributeStyle(MutableStylePropertySet*, CSSPropertyID, SVGLength&);
 
     const WillBeHeapHashSet<RawPtrWillBeWeakMember<SVGElement>>& instancesForElement() const;
     void mapInstanceToElement(SVGElement*);
     void removeInstanceMapping(SVGElement*);
@@ skipping 166 matching lines @@
     template<typename T> inline bool is##thisType(const PassRefPtrWillBeRawPtr<T>& node) { return is##thisType(node.get()); } \
     template<typename T> inline bool is##thisType(const RefPtrWillBeMember<T>& node) { return is##thisType(node.get()); } \
     template <> inline bool isElementOfType<const thisType>(const SVGElement& element) { return is##thisType(element); } \
     DEFINE_ELEMENT_TYPE_CASTS_WITH_FUNCTION(thisType)
 
 } // namespace blink
 
 #include "core/SVGElementTypeHelpers.h"
 
 #endif // SVGElement_h