Frozen animations still contribute to the sandwich/animation stack

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 1136 matching lines @@
         connectSyncBaseConditions();
 
     if (!m_interval.begin.isFinite()) {
         ASSERT(m_activeState == Inactive);
         m_nextProgressTime = SMILTime::unresolved();
         return false;
     }
 
     if (elapsed < m_interval.begin) {
         ASSERT(m_activeState != Active);
-        if (m_activeState == Frozen) {
+        bool isFrozen = (m_activeState == Frozen);
+        if (isFrozen) {
             if (this == resultElement)
                 resetAnimatedType();
             updateAnimation(m_lastPercent, m_lastRepeat, resultElement);
         }
         m_nextProgressTime = m_interval.begin;
-        return false;
+        // If the animation is frozen, it's still contributing.
+        return isFrozen;
     }
 
     m_previousIntervalBegin = m_interval.begin;
 
     if (m_isWaitingForFirstInterval) {
         m_isWaitingForFirstInterval = false;
         resolveFirstInterval();
     }
 
     // This call may obtain a new interval -- never call calculateAnimationPercentAndRepeat() before!
@@ skipping 170 matching lines @@
 void SVGSMILElement::trace(Visitor* visitor)
 {
     visitor->trace(m_targetElement);
     visitor->trace(m_timeContainer);
     visitor->trace(m_conditions);
     visitor->trace(m_syncBaseDependents);
     SVGElement::trace(visitor);
 }
 
 }