Remove unused V8 integration code in Sky

sky/engine/bindings/core/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
- * 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.
- */
-
-#ifndef SKY_ENGINE_BINDINGS_CORE_V8_DOMWRAPPERWORLD_H_
-#define SKY_ENGINE_BINDINGS_CORE_V8_DOMWRAPPERWORLD_H_
-
-#include "sky/engine/bindings/core/v8/ScriptState.h"
-#include "sky/engine/wtf/HashSet.h"
-#include "sky/engine/wtf/MainThread.h"
-#include "sky/engine/wtf/PassRefPtr.h"
-#include "sky/engine/wtf/RefCounted.h"
-#include "sky/engine/wtf/RefPtr.h"
-#include "sky/engine/wtf/text/WTFString.h"
-#include "v8/include/v8.h"
-
-namespace blink {
-
-class DOMDataStore;
-class ExecutionContext;
-class ScriptController;
-
-enum FakeWorldMarker {
-    MainWorld,
-    FakeWorld, // Used by garbage collection and testing, not sure why.
-};
-
-// This class represent a collection of DOM wrappers for a specific world.
-class DOMWrapperWorld : public RefCounted<DOMWrapperWorld> {
-public:
-    static PassRefPtr<DOMWrapperWorld> create(FakeWorldMarker);
-
-    ~DOMWrapperWorld();
-    void dispose();
-
-    static DOMWrapperWorld& world(v8::Handle<v8::Context> context)
-    {
-        return ScriptState::from(context)->world();
-    }
-
-    static DOMWrapperWorld& current(v8::Isolate* isolate)
-    {
-        if (isMainThread() && worldOfInitializingWindow) {
-            // It's possible that current() is being called while window is being initialized.
-            // In order to make current() workable during the initialization phase,
-            // we cache the world of the initializing window on worldOfInitializingWindow.
-            // If there is no initiazing window, worldOfInitializingWindow is 0.
-            return *worldOfInitializingWindow;
-        }
-        return world(isolate->GetCurrentContext());
-    }
-
-    static DOMWrapperWorld& mainWorld();
-
-    bool isMainWorld() const { return !m_isFakeWorld; }
-
-    DOMDataStore& domDataStore() const { return *m_domDataStore; }
-
-    static void setWorldOfInitializingWindow(DOMWrapperWorld* world)
-    {
-        ASSERT(isMainThread());
-        worldOfInitializingWindow = world;
-    }
-    // FIXME: Remove this method once we fix crbug.com/345014.
-    static bool windowIsBeingInitialized() { return !!worldOfInitializingWindow; }
-
-private:
-    class DOMObjectHolderBase {
-    public:
-        DOMObjectHolderBase(v8::Isolate* isolate, v8::Handle<v8::Value> wrapper)
-            : m_wrapper(isolate, wrapper)
-            , m_world(0)
-        {
-        }
-        virtual ~DOMObjectHolderBase() { }
-
-        DOMWrapperWorld* world() const { return m_world; }
-        void setWorld(DOMWrapperWorld* world) { m_world = world; }
-        void setWeak(void (*callback)(const v8::WeakCallbackData<v8::Value, DOMObjectHolderBase>&))
-        {
-            m_wrapper.setWeak(this, callback);
-        }
-
-    private:
-        ScopedPersistent<v8::Value> m_wrapper;
-        DOMWrapperWorld* m_world;
-    };
-
-    template<typename T>
-    class DOMObjectHolder : public DOMObjectHolderBase {
-    public:
-        static PassOwnPtr<DOMObjectHolder<T> > create(v8::Isolate* isolate, T* object, v8::Handle<v8::Value> wrapper)
-        {
-            return adoptPtr(new DOMObjectHolder(isolate, object, wrapper));
-        }
-
-    private:
-        DOMObjectHolder(v8::Isolate* isolate, T* object, v8::Handle<v8::Value> wrapper)
-            : DOMObjectHolderBase(isolate, wrapper)
-            , m_object(object)
-        {
-        }
-
-        OwnPtr<T> m_object;
-    };
-
-public:
-    template<typename T>
-    void registerDOMObjectHolder(v8::Isolate* isolate, T* object, v8::Handle<v8::Value> wrapper)
-    {
-        registerDOMObjectHolderInternal(DOMObjectHolder<T>::create(isolate, object, wrapper));
-    }
-
-private:
-    DOMWrapperWorld(FakeWorldMarker);
-
-    static void weakCallbackForDOMObjectHolder(const v8::WeakCallbackData<v8::Value, DOMObjectHolderBase>&);
-    void registerDOMObjectHolderInternal(PassOwnPtr<DOMObjectHolderBase>);
-    void unregisterDOMObjectHolder(DOMObjectHolderBase*);
-
-    static DOMWrapperWorld* worldOfInitializingWindow;
-
-    bool m_isFakeWorld;
-    OwnPtr<DOMDataStore> m_domDataStore;
-    HashSet<OwnPtr<DOMObjectHolderBase> > m_domObjectHolders;
-};
-
-} // namespace blink
-
-#endif  // SKY_ENGINE_BINDINGS_CORE_V8_DOMWRAPPERWORLD_H_