Make sure begin and end events are dispatched for back-to-back intervals

Source/core/svg/animation/SVGSMILElement.h

 /*
  * 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 131 matching lines @@
         Begin,
         End
     };
 
     SMILTime findInstanceTime(BeginOrEnd, SMILTime minimumTime, bool equalsMinimumOK) const;
     void resolveFirstInterval();
     bool resolveNextInterval();
     void resolveInterval(bool first, SMILTime& beginResult, SMILTime& endResult) const;
     SMILTime resolveActiveEnd(SMILTime resolvedBegin, SMILTime resolvedEnd) const;
     SMILTime repeatingDuration() const;
-    void checkRestart(SMILTime elapsed);
+
+    enum RestartedInterval {
+        DidNotRestartInterval,
+        DidRestartInterval
+    };
+
+    RestartedInterval maybeRestartInterval(SMILTime elapsed);
     void beginListChanged(SMILTime eventTime);
     void endListChanged(SMILTime eventTime);
 
     // This represents conditions on elements begin or end list that need to be resolved on runtime
     // for example <animate begin="otherElement.begin + 8s; button.click" ... />
     struct Condition {
         enum Type {
             EventBase,
             Syncbase,
             AccessKey
@@ skipping 81 matching lines @@
 {
     return node.hasTagName(SVGNames::setTag) || node.hasTagName(SVGNames::animateTag) || node.hasTagName(SVGNames::animateMotionTag)
         || node.hasTagName(SVGNames::animateTransformTag) || node.hasTagName((SVGNames::discardTag));
 }
 
 DEFINE_NODE_TYPE_CASTS_WITH_FUNCTION(SVGSMILElement);
 
 }
 
 #endif // SVGSMILElement_h