Moved files under Source/bindings/v8 to Source/bindings/core/v8.

Source/bindings/v8/V8GarbageCollected.h

-/*
- * Copyright (C) 2014 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 V8GarbageCollected_h
-#define V8GarbageCollected_h
-
-#include <v8.h>
-
-namespace WebCore {
-
-template<typename T>
-class V8GarbageCollected {
-    WTF_MAKE_NONCOPYABLE(V8GarbageCollected);
-public:
-    static T* Cast(v8::Handle<v8::Value> value)
-    {
-        ASSERT(value->IsExternal());
-        T* result = static_cast<T*>(value.As<v8::External>()->Value());
-        RELEASE_ASSERT(result->m_handle == value);
-        return result;
-    }
-
-protected:
-    V8GarbageCollected(v8::Isolate* isolate)
-        : m_isolate(isolate)
-        , m_handle(isolate, v8::External::New(isolate, static_cast<T*>(this)))
-        , m_releasedToV8GarbageCollector(false)
-    {
-    }
-
-    v8::Handle<v8::External> releaseToV8GarbageCollector()
-    {
-        ASSERT(!m_handle.isWeak()); // Call this exactly once.
-        m_releasedToV8GarbageCollector = true;
-        v8::Handle<v8::External> result = m_handle.newLocal(m_isolate);
-        m_handle.setWeak(static_cast<T*>(this), &weakCallback);
-        return result;
-    }
-
-    ~V8GarbageCollected()
-    {
-        ASSERT(!m_releasedToV8GarbageCollector || m_handle.isEmpty());
-    }
-
-    v8::Isolate* isolate() { return m_isolate; }
-
-private:
-    static void weakCallback(const v8::WeakCallbackData<v8::External, T>& data)
-    {
-        T* self = data.GetParameter();
-        self->m_handle.clear();
-        delete self;
-    }
-
-    v8::Isolate* m_isolate;
-    ScopedPersistent<v8::External> m_handle;
-    bool m_releasedToV8GarbageCollector;
-};
-
-} // namespace WebCore
-
-#endif // V8GarbageCollected_h