[SVG] Remove existing event listeners when eventBase conditions are cleared

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 171 matching lines @@
     resolveFirstInterval();
 }
 
 SVGSMILElement::~SVGSMILElement()
 {
     clearResourceAndEventBaseReferences();
     smilEndEventSender().cancelEvent(this);
     smilBeginEventSender().cancelEvent(this);
     smilRepeatEventSender().cancelEvent(this);
     smilRepeatNEventSender().cancelEvent(this);
-    disconnectSyncBaseConditions();
-    disconnectEventBaseConditions();
+    clearConditions();
     if (m_timeContainer && m_targetElement && hasValidAttributeName())
         m_timeContainer->unschedule(this, m_targetElement, m_attributeName);
 }
 
 void SVGSMILElement::clearResourceAndEventBaseReferences()
 {
     document().accessSVGExtensions()->removeAllTargetReferencesForElement(this);
 }
 
+void SVGSMILElement::clearConditions()
+{
+    disconnectSyncBaseConditions();
+    disconnectEventBaseConditions();
+    m_conditions.clear();
+}
+
 void SVGSMILElement::buildPendingResource()
 {
     clearResourceAndEventBaseReferences();
 
     if (!inDocument()) {
         // Reset the target element if we are no longer in the document.
         setTargetElement(0);
         return;
     }
 
@@ skipping 102 matching lines @@
 
     buildPendingResource();
 
     return InsertionDone;
 }
 
 void SVGSMILElement::removedFrom(ContainerNode* rootParent)
 {
     if (rootParent->inDocument()) {
         clearResourceAndEventBaseReferences();
-        disconnectSyncBaseConditions();
-        disconnectEventBaseConditions();
+        clearConditions();
         setTargetElement(0);
         setAttributeName(anyQName());
         animationAttributeChanged();
         m_timeContainer = 0;
     }
 
     SVGElement::removedFrom(rootParent);
 }
 
 bool SVGSMILElement::hasValidAttributeName()
@@ skipping 161 matching lines @@
         supportedAttributes.add(SVGNames::attributeNameAttr);
         supportedAttributes.add(XLinkNames::hrefAttr);
     }
     return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
 }
 
 void SVGSMILElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     if (name == SVGNames::beginAttr) {
         if (!m_conditions.isEmpty()) {
-            disconnectSyncBaseConditions();
-            m_conditions.clear();
+            clearConditions();
             parseBeginOrEnd(fastGetAttribute(SVGNames::endAttr), End);
         }
         parseBeginOrEnd(value.string(), Begin);
         if (inDocument())
             connectSyncBaseConditions();
     } else if (name == SVGNames::endAttr) {
         if (!m_conditions.isEmpty()) {
-            disconnectSyncBaseConditions();
-            m_conditions.clear();
+            clearConditions();
             parseBeginOrEnd(fastGetAttribute(SVGNames::beginAttr), Begin);
         }
         parseBeginOrEnd(value.string(), End);
         if (inDocument())
             connectSyncBaseConditions();
     } else if (name == SVGNames::onbeginAttr) {
         setAttributeEventListener(EventTypeNames::beginEvent, createAttributeEventListener(this, name, value));
     } else if (name == SVGNames::onendAttr) {
         setAttributeEventListener(EventTypeNames::endEvent, createAttributeEventListener(this, name, value));
     } else if (name == SVGNames::onrepeatAttr) {
@@ skipping 776 matching lines @@
     if (eventType == "repeatn") {
         unsigned repeatEventCount = m_repeatEventCountList.first();
         m_repeatEventCountList.remove(0);
         dispatchEvent(RepeatEvent::create(eventType, repeatEventCount));
     } else {
         dispatchEvent(Event::create(eventType));
     }
 }
 
 }