Dispatch synthetic events even when target and relatedTarget are identical

third_party/WebKit/Source/core/events/EventPath.h

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 73 matching lines @@
   }
 
  private:
   EventPath();
 
   void initialize();
   void calculatePath();
   void calculateAdjustedTargets();
   void calculateTreeOrderAndSetNearestAncestorClosedTree();
 
+  bool shouldStopEventPath(EventTarget& currentTarget,
+                           EventTarget& currentRelatedTarget,
+                           const Node& target);
+
   void shrink(size_t newSize) {
     DCHECK(!m_windowEventContext);
     m_nodeEventContexts.shrink(newSize);
   }
 
   void retargetRelatedTarget(const Node& relatedTargetNode);
 
-  void shrinkForRelatedTarget(const Node& target, const Node& relatedTarget);
+  void shrinkForRelatedTarget(const Node& target);
 
   void adjustTouchList(const TouchList*,
                        HeapVector<Member<TouchList>> adjustedTouchList,
                        const HeapVector<Member<TreeScope>>& treeScopes);
 
   using TreeScopeEventContextMap =
       HeapHashMap<Member<TreeScope>, Member<TreeScopeEventContext>>;
   TreeScopeEventContext* ensureTreeScopeEventContext(Node* currentTarget,
                                                      TreeScope*,
                                                      TreeScopeEventContextMap&);
@@ skipping 10 matching lines @@
   HeapVector<NodeEventContext> m_nodeEventContexts;
   Member<Node> m_node;
   Member<Event> m_event;
   HeapVector<Member<TreeScopeEventContext>> m_treeScopeEventContexts;
   Member<WindowEventContext> m_windowEventContext;
 };
 
 }  // namespace blink
 
 #endif