SVG objects with same idrefs conflict when under different shadow root

third_party/WebKit/Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc.
  * All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
@@ skipping 116 matching lines @@
 #include "core/page/Page.h"
 #include "core/page/PointerLockController.h"
 #include "core/page/SpatialNavigation.h"
 #include "core/page/scrolling/RootScrollerController.h"
 #include "core/page/scrolling/ScrollCustomizationCallbacks.h"
 #include "core/page/scrolling/ScrollState.h"
 #include "core/page/scrolling/ScrollStateCallback.h"
 #include "core/page/scrolling/TopDocumentRootScrollerController.h"
 #include "core/paint/PaintLayer.h"
 #include "core/svg/SVGAElement.h"
-#include "core/svg/SVGDocumentExtensions.h"
 #include "core/svg/SVGElement.h"
+#include "core/svg/SVGTreeScopeResources.h"
 #include "platform/EventDispatchForbiddenScope.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/graphics/CompositorMutableProperties.h"
 #include "platform/graphics/CompositorMutation.h"
 #include "platform/scroll/ScrollableArea.h"
 #include "wtf/BitVector.h"
 #include "wtf/HashFunctions.h"
 #include "wtf/text/CString.h"
 #include "wtf/text/StringBuilder.h"
 #include "wtf/text/TextPosition.h"
@@ skipping 1508 matching lines @@
     const AtomicString& nameValue = getNameAttribute();
     if (!nameValue.isNull())
       updateName(nameValue, nullAtom);
   }
 
   ContainerNode::removedFrom(insertionPoint);
   if (wasInDocument) {
     if (this == document().cssTarget())
       document().setCSSTarget(nullptr);
 
-    if (hasPendingResources())
-      document().accessSVGExtensions().removeElementFromPendingResources(this);
+    if (hasPendingResources()) {
+      treeScope()
+          .ensureSVGTreeScopedResources()
+          .removeElementFromPendingResources(this);
+    }
 
     if (getCustomElementState() == CustomElementState::Custom)
       CustomElement::enqueueDisconnectedCallback(this);
     else if (isUpgradedV0CustomElement())
       V0CustomElement::didDetach(this, insertionPoint->document());
 
     if (needsStyleInvalidation())
       document().styleEngine().styleInvalidator().clearInvalidation(*this);
   }
 
@@ skipping 2446 matching lines @@
 }
 
 DEFINE_TRACE_WRAPPERS(Element) {
   if (hasRareData()) {
     visitor->traceWrappers(elementRareData());
   }
   ContainerNode::traceWrappers(visitor);
 }
 
 }  // namespace blink