Implement an infrastructure of Blink-in-JS

Source/bindings/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 49 matching lines @@
 {
 }
 
 DOMWrapperWorld& DOMWrapperWorld::mainWorld()
 {
     ASSERT(isMainThread());
     DEFINE_STATIC_REF(DOMWrapperWorld, cachedMainWorld, (DOMWrapperWorld::create(MainWorldId, mainWorldExtensionGroup)));
     return *cachedMainWorld;
 }
 
+DOMWrapperWorld& DOMWrapperWorld::privateScriptWorld()
+{
+    ASSERT(isMainThread());
+    DEFINE_STATIC_LOCAL(RefPtr<DOMWrapperWorld>, cachedPrivateScriptWorld, ());
+    DEFINE_STATIC_LOCAL(bool, isInitialized, (false));
+    if (!isInitialized) {
+        isInitialized = true;
+        cachedPrivateScriptWorld = DOMWrapperWorld::create(PrivateScriptIsolatedWorldId, privateScriptIsolatedWorldExtensionGroup);
+        isolatedWorldCount++;
+    }
+    return *cachedPrivateScriptWorld;
+}
+
 typedef HashMap<int, DOMWrapperWorld*> WorldMap;
 static WorldMap& isolatedWorldMap()
 {
     ASSERT(isMainThread());
     DEFINE_STATIC_LOCAL(WorldMap, map, ());
     return map;
 }
 
 void DOMWrapperWorld::allWorldsInMainThread(Vector<RefPtr<DOMWrapperWorld> >& worlds)
 {
@@ skipping 103 matching lines @@
 void DOMWrapperWorld::setIsolatedWorldContentSecurityPolicy(int worldId, const String& policy)
 {
     ASSERT(isIsolatedWorldId(worldId));
     if (!policy.isEmpty())
         isolatedWorldContentSecurityPolicies().set(worldId, true);
     else
         isolatedWorldContentSecurityPolicies().remove(worldId);
 }
 
 } // namespace WebCore