Merge 122755 - SVGAnimationElement::currentValuesForValuesAnimation crash

Source/WebCore/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 1027 matching lines @@
     m_previousIntervalBegin = m_intervalBegin;
 
     if (m_isWaitingForFirstInterval) {
         m_isWaitingForFirstInterval = false;
         resolveFirstInterval();
     }
 
     // This call may obtain a new interval -- never call calculateAnimationPercentAndRepeat() before!
     if (seekToTime) {
         seekToIntervalCorrespondingToTime(elapsed);
-        ASSERT(elapsed >= m_intervalBegin);
+        if (elapsed < m_intervalBegin) {
+            // elapsed is not within an interval.
+            m_nextProgressTime = m_intervalBegin;
+            return false;
+        }
     }
 
     unsigned repeat = 0;
     float percent = calculateAnimationPercentAndRepeat(elapsed, repeat);
     checkRestart(elapsed);
 
     ActiveState oldActiveState = m_activeState;
     m_activeState = determineActiveState(elapsed);
     bool animationIsContributing = isContributing(elapsed);
 
@@ skipping 89 matching lines @@
 
 void SVGSMILElement::endedActiveInterval()
 {
     clearTimesWithDynamicOrigins(m_beginTimes);
     clearTimesWithDynamicOrigins(m_endTimes);
 }
 
 }
 
 #endif