diff -r 000000000000 -r 4f2f89ce4247 WebKit/win/WebScriptWorld.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit/win/WebScriptWorld.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2009 Apple 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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.
+ */
+
+#include "config.h"
+#include "WebKitDLL.h"
+#include "WebScriptWorld.h"
+
+#include <JavaScriptCore/APICast.h>
+#include <WebCore/JSDOMBinding.h>
+#include <WebCore/ScriptController.h>
+
+using namespace WebCore;
+
+typedef HashMap<DOMWrapperWorld*, WebScriptWorld*> WorldMap;
+static WorldMap& allWorlds()
+{
+    static WorldMap& map = *new WorldMap;
+    return map;
+}
+
+inline WebScriptWorld::WebScriptWorld(PassRefPtr<DOMWrapperWorld> world)
+    : m_refCount(0)
+    , m_world(world)
+{
+    ASSERT_ARG(world, m_world);
+
+    ASSERT_ARG(world, !allWorlds().contains(m_world.get()));
+    allWorlds().add(m_world.get(), this);
+
+    ++gClassCount;
+    gClassNameCount.add("WebScriptWorld");
+}
+
+WebScriptWorld::~WebScriptWorld()
+{
+    ASSERT(allWorlds().contains(m_world.get()));
+    allWorlds().remove(m_world.get());
+
+    --gClassCount;
+    gClassNameCount.remove("WebScriptWorld");
+}
+
+WebScriptWorld* WebScriptWorld::standardWorld()
+{
+    static WebScriptWorld* standardWorld = createInstance(mainThreadNormalWorld()).releaseRef();
+    return standardWorld;
+}
+
+COMPtr<WebScriptWorld> WebScriptWorld::createInstance()
+{
+    return createInstance(ScriptController::createWorld());
+}
+
+COMPtr<WebScriptWorld> WebScriptWorld::createInstance(PassRefPtr<DOMWrapperWorld> world)
+{
+    return new WebScriptWorld(world);
+}
+
+COMPtr<WebScriptWorld> WebScriptWorld::findOrCreateWorld(DOMWrapperWorld* world)
+{
+    if (world == mainThreadNormalWorld())
+        return standardWorld();
+
+    if (WebScriptWorld* existingWorld = allWorlds().get(world))
+        return existingWorld;
+
+    return createInstance(world);
+}
+
+ULONG WebScriptWorld::AddRef()
+{
+    return ++m_refCount;
+}
+
+ULONG WebScriptWorld::Release()
+{
+    ULONG newRefCount = --m_refCount;
+    if (!newRefCount)
+        delete this;
+    return newRefCount;
+}
+
+HRESULT WebScriptWorld::QueryInterface(REFIID riid, void** ppvObject)
+{
+    if (!ppvObject)
+        return E_POINTER;
+    *ppvObject = 0;
+
+    if (IsEqualIID(riid, __uuidof(WebScriptWorld)))
+        *ppvObject = this;
+    else if (IsEqualIID(riid, __uuidof(IWebScriptWorld)))
+        *ppvObject = static_cast<IWebScriptWorld*>(this);
+    else if (IsEqualIID(riid, IID_IUnknown))
+        *ppvObject = static_cast<IUnknown*>(this);
+    else
+        return E_NOINTERFACE;
+
+    AddRef();
+    return S_OK;
+}
+
+HRESULT WebScriptWorld::standardWorld(IWebScriptWorld** outWorld)
+{
+    if (!outWorld)
+        return E_POINTER;
+
+    *outWorld = standardWorld();
+    (*outWorld)->AddRef();
+    return S_OK;
+}
+
+HRESULT WebScriptWorld::scriptWorldForGlobalContext(JSGlobalContextRef context, IWebScriptWorld** outWorld)
+{
+    if (!outWorld)
+        return E_POINTER;
+    return findOrCreateWorld(currentWorld(toJS(context))).copyRefTo(outWorld);
+}
+
+HRESULT WebScriptWorld::unregisterWorld()
+{
+    m_world->unregisterWorld();
+    return S_OK;
+}