SVG object with same idrefs get conflicted even they are under different shadow root

third_party/WebKit/Source/core/svg/animation/SVGSMILElement.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 227 matching lines @@
     SVGElement* svgTarget = target && target->isSVGElement() ? toSVGElement(target) : nullptr;
 
     if (svgTarget && !svgTarget->inShadowIncludingDocument())
         svgTarget = nullptr;
 
     if (svgTarget != targetElement())
         setTargetElement(svgTarget);
 
     if (!svgTarget) {
         // Do not register as pending if we are already pending this resource.
-        if (document().accessSVGExtensions().isElementPendingResource(this, id))
+        if (treeScope().accessSVGTreeScopedResources().isElementPendingResource(this, id))
             return;
 
         if (!id.isEmpty()) {
-            document().accessSVGExtensions().addPendingResource(id, this);
+            treeScope().accessSVGTreeScopedResources().addPendingResource(id, this);
             ASSERT(hasPendingResources());
         }
     } else {
         // Register us with the target in the dependencies map. Any change of hrefElement
         // that leads to relayout/repainting now informs us, so we can react to it.
         addReferenceTo(svgTarget);
     }
     connectEventBaseConditions();
 }
 
@@ skipping 357 matching lines @@
 
 void SVGSMILElement::connectEventBaseConditions()
 {
     disconnectEventBaseConditions();
     for (unsigned n = 0; n < m_conditions.size(); ++n) {
         Condition* condition = m_conditions[n].get();
         if (condition->getType() == Condition::EventBase) {
             ASSERT(!condition->syncBase());
             SVGElement* eventBase = eventBaseFor(*condition);
             if (!eventBase) {
-                if (!condition->baseID().isEmpty() && !document().accessSVGExtensions().isElementPendingResource(this, AtomicString(condition->baseID())))
-                    document().accessSVGExtensions().addPendingResource(AtomicString(condition->baseID()), this);
+                if (!condition->baseID().isEmpty() && !treeScope().accessSVGTreeScopedResources().isElementPendingResource(this, AtomicString(condition->baseID())))
+                    treeScope().accessSVGTreeScopedResources().addPendingResource(AtomicString(condition->baseID()), this);
                 continue;
             }
             ASSERT(!condition->eventListener());
             condition->setEventListener(ConditionEventListener::create(this, condition));
             eventBase->addEventListener(AtomicString(condition->name()), condition->eventListener(), false);
             addReferenceTo(eventBase);
         }
     }
 }
 
@@ skipping 715 matching lines @@
 {
     visitor->trace(m_targetElement);
     visitor->trace(m_timeContainer);
     visitor->trace(m_conditions);
     visitor->trace(m_syncBaseDependents);
     SVGElement::trace(visitor);
     SVGTests::trace(visitor);
 }
 
 } // namespace blink