--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bridge/runtime_root.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2004 Apple Computer, 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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 with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef RUNTIME_ROOT_H_
+#define RUNTIME_ROOT_H_
+
+#if PLATFORM(MAC)
+#include "jni_jsobject.h"
+#endif
+#include <runtime/Protect.h>
+
+#include <wtf/Forward.h>
+#include <wtf/HashSet.h>
+#include <wtf/Noncopyable.h>
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+
+namespace JSC {
+
+class Interpreter;
+class JSGlobalObject;
+
+namespace Bindings {
+
+class RootObject;
+class RuntimeObject;
+
+typedef HashCountedSet<JSObject*> ProtectCountSet;
+
+extern RootObject* findProtectingRootObject(JSObject*);
+extern RootObject* findRootObject(JSGlobalObject*);
+
+class RootObject : public RefCounted<RootObject> {
+    friend class JavaJSObject;
+
+public:
+    ~RootObject();
+    
+    static PassRefPtr<RootObject> create(const void* nativeHandle, JSGlobalObject*);
+
+    bool isValid() { return m_isValid; }
+    void invalidate();
+    
+    void gcProtect(JSObject*);
+    void gcUnprotect(JSObject*);
+    bool gcIsProtected(JSObject*);
+
+    const void* nativeHandle() const;
+    JSGlobalObject* globalObject() const;
+
+    void addRuntimeObject(RuntimeObject*);
+    void removeRuntimeObject(RuntimeObject*);
+
+    struct InvalidationCallback {
+        virtual void operator()(RootObject*) = 0;
+        virtual ~InvalidationCallback();
+    };
+    void addInvalidationCallback(InvalidationCallback* callback) { m_invalidationCallbacks.add(callback); }
+
+private:
+    RootObject(const void* nativeHandle, JSGlobalObject*);
+    
+    bool m_isValid;
+    
+    const void* m_nativeHandle;
+    ProtectedPtr<JSGlobalObject> m_globalObject;
+
+    ProtectCountSet m_protectCountSet;
+    HashSet<RuntimeObject*> m_runtimeObjects;    
+
+    HashSet<InvalidationCallback*> m_invalidationCallbacks;
+};
+
+} // namespace Bindings
+
+} // namespace JSC
+
+#endif // RUNTIME_ROOT_H_