--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/v8/V8IsolatedContext.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,91 @@
+/*
+ * 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
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * OWNER 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.
+ */
+
+#include "config.h"
+
+#include "V8IsolatedContext.h"
+
+#include "Frame.h"
+#include "FrameLoaderClient.h"
+#include "HashMap.h"
+#include "ScriptController.h"
+#include "V8DOMWindow.h"
+#include "V8HiddenPropertyName.h"
+
+namespace WebCore {
+
+
+void V8IsolatedContext::contextWeakReferenceCallback(v8::Persistent<v8::Value> object, void* isolatedContext)
+{
+    // Our context is going away.  Time to clean up the world.
+    V8IsolatedContext* context = static_cast<V8IsolatedContext*>(isolatedContext);
+    delete context;
+}
+
+V8IsolatedContext::V8IsolatedContext(V8Proxy* proxy, int extensionGroup)
+    : m_world(IsolatedWorld::create())
+{
+    v8::HandleScope scope;
+    // FIXME: We should be creating a new V8DOMWindowShell here instead of riping out the context.
+    m_context = SharedPersistent<v8::Context>::create(proxy->windowShell()->createNewContext(v8::Handle<v8::Object>(), extensionGroup));
+    if (m_context->get().IsEmpty())
+        return;
+
+    // Run code in the new context.
+    v8::Context::Scope contextScope(m_context->get());
+
+    getGlobalObject(m_context->get())->SetPointerInInternalField(V8DOMWindow::enteredIsolatedWorldIndex, this);
+
+    V8DOMWindowShell::installHiddenObjectPrototype(m_context->get());
+    // FIXME: This will go away once we have a windowShell for the isolated world.
+    proxy->windowShell()->installDOMWindow(m_context->get(), proxy->frame()->domWindow());
+
+    // Using the default security token means that the canAccess is always
+    // called, which is slow.
+    // FIXME: Use tokens where possible. This will mean keeping track of all
+    //        created contexts so that they can all be updated when the
+    //        document domain
+    //        changes.
+    m_context->get()->UseDefaultSecurityToken();
+
+    proxy->frame()->loader()->client()->didCreateIsolatedScriptContext();
+}
+
+void V8IsolatedContext::destroy()
+{
+    m_context->get().MakeWeak(this, &contextWeakReferenceCallback);
+}
+
+V8IsolatedContext::~V8IsolatedContext()
+{
+    m_context->disposeHandle();
+}
+
+} // namespace WebCore