Remove ContextScope from visitDOMWrapper

third_party/WebKit/Source/bindings/core/v8/DOMWrapperWorld.cpp

 /*
  * Copyright (C) 2009 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 130 matching lines @@
     // TODO(hlopko): Currently wrapper in one world will keep wrappers in all
     // worlds alive (possibly holding on entire documents). This is neither
     // needed (there is no way to get from one wrapper to another), nor wanted
     // (big performance and memory overhead).
 
     // Marking for the main world
     scriptWrappable->markWrapper(isolate);
     if (!isMainThread())
         return;
     WorldMap& isolatedWorlds = isolatedWorldMap();
-    for (auto& keyValuePair : isolatedWorlds) {
-        DOMDataStore& dataStore = keyValuePair.value->domDataStore();
+    for (auto& world : isolatedWorlds.values()) {
+        DOMDataStore& dataStore = world->domDataStore();
         if (dataStore.containsWrapper(scriptWrappable)) {
             // Marking for the isolated worlds
             dataStore.markWrapper(scriptWrappable);
         }
     }
 }
 
+void DOMWrapperWorld::setWrapperReferencesInAllWorlds(const v8::Persistent<v8::Object>& parent, ScriptWrappable* scriptWrappable, v8::Isolate* isolate)
+{
+    // Marking for the main world
+    scriptWrappable->setReference(parent, isolate);
+    if (!isMainThread())
+        return;
+    WorldMap& isolatedWorlds = isolatedWorldMap();
+    for (auto& world : isolatedWorlds.values()) {
+        DOMDataStore& dataStore = world->domDataStore();
+        if (dataStore.containsWrapper(scriptWrappable)) {
+            // Marking for the isolated worlds
+            dataStore.setReference(parent, scriptWrappable, isolate);
+        }
+    }
+}
+
 DOMWrapperWorld::~DOMWrapperWorld()
 {
     ASSERT(!isMainWorld());
 
     dispose();
 
     if (!isIsolatedWorld())
         return;
 
     WorldMap& map = isolatedWorldMap();
@@ skipping 132 matching lines @@
     m_domObjectHolders.remove(holderBase);
 }
 
 void DOMWrapperWorld::weakCallbackForDOMObjectHolder(const v8::WeakCallbackInfo<DOMObjectHolderBase>& data)
 {
     DOMObjectHolderBase* holderBase = data.GetParameter();
     holderBase->world()->unregisterDOMObjectHolder(holderBase);
 }
 
 } // namespace blink