Prevent crash in createInstanceTimesFromSyncbase

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 1227 matching lines @@
     for (unsigned n = 0; n < m_conditions.size(); ++n) {
         Condition& condition = m_conditions[n];
         if (condition.m_type == Condition::Syncbase && condition.m_syncbase == syncbase) {
             ASSERT(condition.m_name == "begin" || condition.m_name == "end");
             // No nested time containers in SVG, no need for crazy time space conversions. Phew!
             SMILTime time = 0;
             if (condition.m_name == "begin")
                 time = syncbase->m_intervalBegin + condition.m_offset;
             else
                 time = syncbase->m_intervalEnd + condition.m_offset;
-            ASSERT(time.isFinite());
+            if (!time.isFinite())
+                continue;
             if (condition.m_beginOrEnd == Begin)
                 addBeginTime(elapsed(), time);
             else
                 addEndTime(elapsed(), time);
         }
     }
 }
 
 void SVGSMILElement::addSyncBaseDependent(SVGSMILElement* animation)
 {
@@ skipping 45 matching lines @@
     if (eventType == "repeatn") {
         unsigned repeatEventCount = m_repeatEventCountList.first();
         m_repeatEventCountList.remove(0);
         dispatchEvent(RepeatEvent::create(eventType, repeatEventCount));
     } else {
         dispatchEvent(Event::create(eventType));
     }
 }
 
 }