Remove unused V8 integration code in Sky

sky/engine/bindings/core/v8/DOMWrapperMap.h

-/*
- * Copyright (C) 2012 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_DOMWRAPPERMAP_H_
-#define SKY_ENGINE_BINDINGS_CORE_V8_DOMWRAPPERMAP_H_
-
-#include "sky/engine/bindings/core/v8/WrapperTypeInfo.h"
-#include "sky/engine/platform/ScriptForbiddenScope.h"
-#include "sky/engine/wtf/HashMap.h"
-#include "v8/include/v8-util.h"
-#include "v8/include/v8.h"
-
-namespace blink {
-
-template<class KeyType>
-class DOMWrapperMap {
-public:
-    explicit DOMWrapperMap(v8::Isolate* isolate)
-        : m_isolate(isolate)
-        , m_map(isolate)
-    {
-    }
-
-    v8::Handle<v8::Object> newLocal(KeyType* key, v8::Isolate* isolate)
-    {
-        return m_map.Get(key);
-    }
-
-    bool setReturnValueFrom(v8::ReturnValue<v8::Value> returnValue, KeyType* key)
-    {
-        return m_map.SetReturnValue(key, returnValue);
-    }
-
-    void setReference(const v8::Persistent<v8::Object>& parent, KeyType* key, v8::Isolate* isolate)
-    {
-        m_map.SetReference(key, parent);
-    }
-
-    bool containsKey(KeyType* key)
-    {
-        return m_map.Contains(key);
-    }
-
-    void set(KeyType* key, v8::Handle<v8::Object> wrapper, const WrapperTypeInfo* wrapperTypeInfo)
-    {
-        ASSERT(reinterpret_cast<KeyType*>(toScriptWrappableBase(wrapper)) == key);
-        RELEASE_ASSERT(!containsKey(key)); // See crbug.com/368095
-        v8::UniquePersistent<v8::Object> unique(m_isolate, wrapper);
-        wrapperTypeInfo->configureWrapper(&unique);
-        m_map.Set(key, unique.Pass());
-    }
-
-    void clear()
-    {
-        m_map.Clear();
-    }
-
-    void removeAndDispose(KeyType* key)
-    {
-        ASSERT(containsKey(key));
-        m_map.Remove(key);
-    }
-
-private:
-    class PersistentValueMapTraits {
-    public:
-        // Map traits:
-        typedef HashMap<KeyType*, v8::PersistentContainerValue> Impl;
-        typedef typename Impl::iterator Iterator;
-        static size_t Size(const Impl* impl) { return impl->size(); }
-        static bool Empty(Impl* impl) { return impl->isEmpty(); }
-        static void Swap(Impl& impl, Impl& other) { impl.swap(other); }
-        static Iterator Begin(Impl* impl) { return impl->begin(); }
-        static Iterator End(Impl* impl) { return impl->end(); }
-        static v8::PersistentContainerValue Value(Iterator& iter)
-        {
-            return iter->value;
-        }
-        static KeyType* Key(Iterator& iter) { return iter->key; }
-        static v8::PersistentContainerValue Set(
-            Impl* impl, KeyType* key, v8::PersistentContainerValue value)
-        {
-            v8::PersistentContainerValue oldValue = Get(impl, key);
-            impl->set(key, value);
-            return oldValue;
-        }
-        static v8::PersistentContainerValue Get(const Impl* impl, KeyType* key)
-        {
-            return impl->get(key);
-        }
-
-        static v8::PersistentContainerValue Remove(Impl* impl, KeyType* key)
-        {
-            return impl->take(key);
-        }
-
-        // Weak traits:
-        static const v8::PersistentContainerCallbackType kCallbackType = v8::kWeak;
-        typedef v8::PersistentValueMap<KeyType*, v8::Object, PersistentValueMapTraits> MapType;
-        typedef MapType WeakCallbackDataType;
-
-        static WeakCallbackDataType* WeakCallbackParameter(MapType* map, KeyType* key, v8::Local<v8::Object>& value)
-        {
-            return map;
-        }
-
-        static void DisposeCallbackData(WeakCallbackDataType* callbackData) { }
-
-        static MapType* MapFromWeakCallbackData(
-            const v8::WeakCallbackData<v8::Object, WeakCallbackDataType>& data)
-        {
-            return data.GetParameter();
-        }
-
-        static KeyType* KeyFromWeakCallbackData(
-            const v8::WeakCallbackData<v8::Object, WeakCallbackDataType>& data)
-        {
-            return reinterpret_cast<KeyType*>(toScriptWrappableBase(data.GetValue()));
-        }
-
-        // Dispose traits:
-        // Generally nothing to do, but see below for a specialization for
-        // DomWrapperMap<void>.
-        static void Dispose(v8::Isolate* isolate, v8::UniquePersistent<v8::Object> value, KeyType* key) { }
-    };
-
-    v8::Isolate* m_isolate;
-    typename PersistentValueMapTraits::MapType m_map;
-};
-
-} // namespace blink
-
-#endif  // SKY_ENGINE_BINDINGS_CORE_V8_DOMWRAPPERMAP_H_