Remove unused V8 integration code in Sky

sky/engine/bindings/core/v8/V8CustomElementLifecycleCallbacks.h

Index: sky/engine/bindings/core/v8/V8CustomElementLifecycleCallbacks.h
diff --git a/sky/engine/bindings/core/v8/V8CustomElementLifecycleCallbacks.h b/sky/engine/bindings/core/v8/V8CustomElementLifecycleCallbacks.h
deleted file mode 100644
index bc42d99a0db5fcd747e49aaf50e963beab99f38b..0000000000000000000000000000000000000000
--- a/sky/engine/bindings/core/v8/V8CustomElementLifecycleCallbacks.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright (C) 2013 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_V8CUSTOMELEMENTLIFECYCLECALLBACKS_H_
-#define SKY_ENGINE_BINDINGS_CORE_V8_V8CUSTOMELEMENTLIFECYCLECALLBACKS_H_
-
-#include "sky/engine/bindings/core/v8/ScopedPersistent.h"
-#include "sky/engine/bindings/core/v8/ScriptState.h"
-#include "sky/engine/core/dom/ContextLifecycleObserver.h"
-#include "sky/engine/core/dom/custom/CustomElementLifecycleCallbacks.h"
-#include "sky/engine/wtf/PassOwnPtr.h"
-#include "sky/engine/wtf/PassRefPtr.h"
-#include "v8/include/v8.h"
-
-namespace blink {
-
-class CustomElementLifecycleCallbacks;
-class Element;
-class ExecutionContext;
-class V8PerContextData;
-
-class V8CustomElementLifecycleCallbacks final : public CustomElementLifecycleCallbacks, ContextLifecycleObserver {
-public:
-    static PassRefPtr<V8CustomElementLifecycleCallbacks> create(ScriptState*, v8::Handle<v8::Object> prototype, v8::Handle<v8::Function> created, v8::Handle<v8::Function> attached, v8::Handle<v8::Function> detached, v8::Handle<v8::Function> attributeChanged);
-
-    virtual ~V8CustomElementLifecycleCallbacks();
-
-    bool setBinding(CustomElementDefinition* owner, PassOwnPtr<CustomElementBinding>);
-
-private:
-    V8CustomElementLifecycleCallbacks(ScriptState*, v8::Handle<v8::Object> prototype, v8::Handle<v8::Function> created, v8::Handle<v8::Function> attached, v8::Handle<v8::Function> detached, v8::Handle<v8::Function> attributeChanged);
-
-    virtual void created(Element*) override;
-    virtual void attached(Element*) override;
-    virtual void detached(Element*) override;
-    virtual void attributeChanged(Element*, const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue) override;
-
-    void call(const ScopedPersistent<v8::Function>& weakCallback, Element*);
-
-    V8PerContextData* creationContextData();
-
-    CustomElementDefinition* m_owner;
-    RefPtr<ScriptState> m_scriptState;
-    ScopedPersistent<v8::Object> m_prototype;
-    ScopedPersistent<v8::Function> m_created;
-    ScopedPersistent<v8::Function> m_attached;
-    ScopedPersistent<v8::Function> m_detached;
-    ScopedPersistent<v8::Function> m_attributeChanged;
-};
-
-}
-
-#endif  // SKY_ENGINE_BINDINGS_CORE_V8_V8CUSTOMELEMENTLIFECYCLECALLBACKS_H_