Implement Custom Elements inserted and removed callbacks.

Source/bindings/v8/V8CustomElementCallback.h

Index: Source/bindings/v8/V8CustomElementCallback.h
diff --git a/Source/bindings/v8/V8CustomElementCallback.h b/Source/bindings/v8/V8CustomElementCallback.h
index 24becc1b4164e4b20dd394d20033551bcfe2af10..09bc9609e3e17047c1895d60f8ac8723e9151353 100644
--- a/Source/bindings/v8/V8CustomElementCallback.h
+++ b/Source/bindings/v8/V8CustomElementCallback.h
@@ -44,17 +44,22 @@ class ScriptExecutionContext;
 
 class V8CustomElementCallback : public CustomElementCallback, ActiveDOMCallback {
 public:
-    static PassRefPtr<V8CustomElementCallback> create(ScriptExecutionContext*, v8::Handle<v8::Object> owner, v8::Handle<v8::Function> ready);
+    static PassRefPtr<V8CustomElementCallback> create(ScriptExecutionContext*, v8::Handle<v8::Object> owner, v8::Handle<v8::Function> ready, v8::Handle<v8::Function> inserted, v8::Handle<v8::Function> removed);
 
     virtual ~V8CustomElementCallback() { }
 
 private:
-    V8CustomElementCallback(ScriptExecutionContext*, v8::Handle<v8::Function> ready);
+    V8CustomElementCallback(ScriptExecutionContext*, v8::Handle<v8::Function> ready, v8::Handle<v8::Function> inserted, v8::Handle<v8::Function> removed);
 
     virtual void ready(Element*) OVERRIDE;
+    virtual void inserted(Element*) OVERRIDE;
+    virtual void removed(Element*) OVERRIDE;
+    void invoke(const ScopedPersistent<v8::Function>& callback, Element*);
 
     RefPtr<DOMWrapperWorld> m_world;
     ScopedPersistent<v8::Function> m_ready;
+    ScopedPersistent<v8::Function> m_inserted;
+    ScopedPersistent<v8::Function> m_removed;
 };
 
 }