Split window support from V8. ...

src/bootstrapper.h

 // Copyright 2006-2008 the V8 project authors. 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
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 28 matching lines @@
   static void Initialize(bool create_heap_objects);
   static void TearDown();
 
   // Creates a JavaScript Global Context with initial object graph.
   // The returned value is a global handle casted to V8Environment*.
   static Handle<Context> CreateEnvironment(
       Handle<Object> global_object,
       v8::Handle<v8::ObjectTemplate> global_template,
       v8::ExtensionConfiguration* extensions);
 
+  // Detach the environment from its outer global object.
+  static void DetachGlobal(Handle<Context> env);
+
   // Traverses the pointers for memory manangment.
   static void Iterate(ObjectVisitor* v);
 
   // Accessors for the native scripts cache. Used in lazy loading.
   static Handle<String> NativesSourceLookup(int index);
   static bool NativesCacheLookup(Vector<const char> name,
                                  Handle<JSFunction>* handle);
   static void NativesCacheAdd(Vector<const char> name, Handle<JSFunction> fun);
 
   // Append code that needs fixup at the end of boot strapping.
   static void AddFixup(Code* code, MacroAssembler* masm);
 
   // Tells whether boostrapping is active.
   static bool IsActive();
 
   // Encoding/decoding support for fixup flags.
   class FixupFlagsIsPCRelative: public BitField<bool, 0, 1> {};
   class FixupFlagsArgumentsCount: public BitField<uint32_t, 1, 32-1> {};
 };
 
 }}  // namespace v8::internal
 
 #endif  // V8_BOOTSTRAPPER_H_