Add support for SVG Clip paths in HTML

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 1565 matching lines @@
         return true;
     return false;
 }
 
 bool Document::needsFullRenderTreeUpdate() const
 {
     if (!isActive() || !view())
         return false;
     if (!m_useElementsNeedingUpdate.isEmpty())
         return true;
-    if (!m_layerUpdateSVGFilterElements.isEmpty())
+    if (!m_layerUpdateSVGEffectsElements.isEmpty())
         return true;
     if (needsStyleRecalc())
         return true;
     if (needsStyleInvalidation())
         return true;
     // FIXME: The childNeedsDistributionRecalc bit means either self or children, we should fix that.
     if (childNeedsDistributionRecalc())
         return true;
     if (DocumentAnimations::needsOutdatedAnimationPlayerUpdate(*this))
         return true;
@@ skipping 464 matching lines @@
     m_isViewSource = isViewSource;
     if (!m_isViewSource)
         return;
 
     setSecurityOrigin(SecurityOrigin::createUnique());
     didUpdateSecurityOrigin();
 }
 
 bool Document::dirtyElementsForLayerUpdate()
 {
-    if (m_layerUpdateSVGFilterElements.isEmpty())
+    if (m_layerUpdateSVGEffectsElements.isEmpty())
         return false;
 
-    for (WillBeHeapHashSet<RawPtrWillBeMember<Element> >::iterator it = m_layerUpdateSVGFilterElements.begin(), end = m_layerUpdateSVGFilterElements.end(); it != end; ++it)
+    for (WillBeHeapHashSet<RawPtrWillBeMember<Element> >::iterator it = m_layerUpdateSVGEffectsElements.begin(), end = m_layerUpdateSVGEffectsElements.end(); it != end; ++it)
         (*it)->setNeedsStyleRecalc(LocalStyleChange);
-    m_layerUpdateSVGFilterElements.clear();
+    m_layerUpdateSVGEffectsElements.clear();
     return true;
 }
 
-void Document::scheduleSVGFilterLayerUpdateHack(Element& element)
+void Document::scheduleSVGEffectsLayerUpdateHack(Element& element)
 {
     if (element.styleChangeType() == NeedsReattachStyleChange)
         return;
-    element.setSVGFilterNeedsLayerUpdate();
-    m_layerUpdateSVGFilterElements.add(&element);
+    element.setSVGEffectsNeedLayerUpdate();
+    m_layerUpdateSVGEffectsElements.add(&element);
     scheduleRenderTreeUpdateIfNeeded();
 }
 
-void Document::unscheduleSVGFilterLayerUpdateHack(Element& element)
+void Document::unscheduleSVGEffectsLayerUpdateHack(Element& element)
 {
-    element.clearSVGFilterNeedsLayerUpdate();
-    m_layerUpdateSVGFilterElements.remove(&element);
+    element.clearSVGEffectsNeedLayerUpdate();
+    m_layerUpdateSVGEffectsElements.remove(&element);
 }
 
 void Document::scheduleUseShadowTreeUpdate(SVGUseElement& element)
 {
     m_useElementsNeedingUpdate.add(&element);
     scheduleRenderTreeUpdateIfNeeded();
 }
 
 void Document::unscheduleUseShadowTreeUpdate(SVGUseElement& element)
 {
@@ skipping 3754 matching lines @@
     visitor->trace(m_parser);
     visitor->trace(m_contextFeatures);
     visitor->trace(m_styleSheetList);
     visitor->trace(m_mediaQueryMatcher);
     visitor->trace(m_scriptedAnimationController);
     visitor->trace(m_registrationContext);
     visitor->trace(m_customElementMicrotaskRunQueue);
     visitor->trace(m_elementDataCache);
     visitor->trace(m_associatedFormControls);
     visitor->trace(m_useElementsNeedingUpdate);
-    visitor->trace(m_layerUpdateSVGFilterElements);
+    visitor->trace(m_layerUpdateSVGEffectsElements);
     visitor->trace(m_templateDocument);
     visitor->trace(m_templateDocumentHost);
     visitor->trace(m_visibilityObservers);
     visitor->trace(m_userActionElements);
     visitor->trace(m_svgExtensions);
     visitor->trace(m_timeline);
     visitor->trace(m_compositorPendingAnimations);
     visitor->trace(m_contextDocument);
     visitor->registerWeakMembers<Document, &Document::clearWeakMembers>(this);
 #endif
     DocumentSupplementable::trace(visitor);
     TreeScope::trace(visitor);
     ContainerNode::trace(visitor);
     ExecutionContext::trace(visitor);
 }
 
 } // namespace blink
 
 #ifndef NDEBUG
 using namespace blink;
 void showLiveDocumentInstances()
 {
     WeakDocumentSet& set = liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (WeakDocumentSet::const_iterator it = set.begin(); it != set.end(); ++it) {
         fprintf(stderr, "- Document %p URL: %s\n", *it, (*it)->url().string().utf8().data());
     }
 }
 #endif