Replace two ASSERT()s for HashMap iterators with DCHECK_NE()s.

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

 /*
  * 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 168 matching lines @@
     for (const auto& treeScopeEventContext : m_treeScopeEventContexts) {
         // Use olderShadowRootOrParentTreeScope here for parent-child relationships.
         // See the definition of trees of trees in the Shadow DOM spec:
         // http://w3c.github.io/webcomponents/spec/shadow/
         TreeScope* parent = treeScopeEventContext.get()->treeScope().olderShadowRootOrParentTreeScope();
         if (!parent) {
             DCHECK(!rootTree);
             rootTree = treeScopeEventContext.get();
             continue;
         }
-        // TODO(tkent): Add a stream printer for HashMap::iterator.
-        ASSERT(treeScopeEventContextMap.find(parent) != treeScopeEventContextMap.end());
+        DCHECK_NE(treeScopeEventContextMap.find(parent), treeScopeEventContextMap.end());
         treeScopeEventContextMap.find(parent)->value->addChild(*treeScopeEventContext.get());
     }
     DCHECK(rootTree);
     rootTree->calculateTreeOrderAndSetNearestAncestorClosedTree(0, nullptr);
 }
 
 TreeScopeEventContext* EventPath::ensureTreeScopeEventContext(Node* currentTarget, TreeScope* treeScope, TreeScopeEventContextMap& treeScopeEventContextMap)
 {
     if (!treeScope)
         return nullptr;
@@ skipping 183 matching lines @@
 DEFINE_TRACE(EventPath)
 {
     visitor->trace(m_nodeEventContexts);
     visitor->trace(m_node);
     visitor->trace(m_event);
     visitor->trace(m_treeScopeEventContexts);
     visitor->trace(m_windowEventContext);
 }
 
 } // namespace blink