Ensure DOMWrapperWorld always exists in all webkit_unit_tests

Source/bindings/v8/DOMWrapperWorld.h

 /*
  * 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 32 matching lines @@
 
 class DOMDataStore;
 class ScriptController;
 class ExecutionContext;
 
 enum WorldIdConstants {
     MainWorldId = 0,
     // Embedder isolated worlds can use IDs in [1, 1<<29).
     EmbedderWorldIdLimit = (1 << 29),
     ScriptPreprocessorIsolatedWorldId,
+    IsolatedWorldIdLimit,
     WorkerWorldId,
+    TestingWorldId,
 };
 
 // This class represent a collection of DOM wrappers for a specific world.
 class DOMWrapperWorld : public RefCounted<DOMWrapperWorld> {
 public:
-    static PassRefPtr<DOMWrapperWorld> create(int worldId, int extensionGroup);
+    static PassRefPtr<DOMWrapperWorld> create(int worldId = -1, int extensionGroup = -1);
 
     static const int mainWorldExtensionGroup = 0;
     static PassRefPtr<DOMWrapperWorld> ensureIsolatedWorld(int worldId, int extensionGroup);
     ~DOMWrapperWorld();
 
     static bool isolatedWorldsExist() { return isolatedWorldCount; }
     static void allWorldsInMainThread(Vector<RefPtr<DOMWrapperWorld> >& worlds);
 
     static DOMWrapperWorld* world(v8::Handle<v8::Context> context)
     {
@@ skipping 19 matching lines @@
     //
     // FIXME: Right now, resource injection simply bypasses the main world's
     // DOM. More work is necessary to allow the isolated world's policy to be
     // applied correctly.
     static void setIsolatedWorldContentSecurityPolicy(int worldID, const String& policy);
     static void clearIsolatedWorldContentSecurityPolicy(int worldID);
     bool isolatedWorldHasContentSecurityPolicy();
 
     bool isMainWorld() const { return m_worldId == MainWorldId; }
     bool isWorkerWorld() const { return m_worldId == WorkerWorldId; }
-    bool isIsolatedWorld() const { return !isMainWorld() && !isWorkerWorld(); }
+    bool isIsolatedWorld() const { return MainWorldId < m_worldId  && m_worldId < IsolatedWorldIdLimit; }
 
     int worldId() const { return m_worldId; }
     int extensionGroup() const { return m_extensionGroup; }
     DOMDataStore& domDataStore() { return *m_domDataStore; }
 
 private:
     static unsigned isolatedWorldCount;
 
     DOMWrapperWorld(int worldId, int extensionGroup);
     static bool contextHasCorrectPrototype(v8::Handle<v8::Context>);
 
     const int m_worldId;
     const int m_extensionGroup;
     OwnPtr<DOMDataStore> m_domDataStore;
 };
 
 } // namespace WebCore
 
 #endif // DOMWrapperWorld_h