Implement Custom Elements inserted and removed callbacks.

Source/core/dom/CustomElementCallbackDispatcher.h

Index: Source/core/dom/CustomElementCallbackDispatcher.h
diff --git a/Source/core/dom/CustomElementCallbackDispatcher.h b/Source/core/dom/CustomElementCallbackDispatcher.h
index a52e7f308f8e8cc6bdeb7f584e8a37ce3967fc1f..5e04d604f19f263d2dcb49c10ba25075c9156043 100644
--- a/Source/core/dom/CustomElementCallbackDispatcher.h
+++ b/Source/core/dom/CustomElementCallbackDispatcher.h
@@ -40,6 +40,8 @@
 
 namespace WebCore {
 
+class Element;
+
 class CustomElementCallbackDispatcher {
     WTF_MAKE_NONCOPYABLE(CustomElementCallbackDispatcher);
 public:
@@ -56,7 +58,9 @@ public:
         }
     };
 
-    void enqueueReadyCallback(CustomElementCallback*, Element*);
+    void enqueueCreationCallbacks(CustomElementCallback*, Element*, bool createdByParser);
+    void enqueueInsertedCallback(CustomElementCallback*, Element*);
+    void enqueueRemovedCallback(CustomElementCallback*, Element*);
 
     // Returns true if more work may have to be performed at the
     // checkpoint by this or other workers (for example, this work
@@ -67,24 +71,24 @@ public:
     // createElementNS and generated constructors.
     void dispatchReadyCallback(Element*);
 
-private:
-    explicit CustomElementCallbackDispatcher() { }
-
-    bool hasQueuedCallbacks() { return !m_invocations.isEmpty(); }
-
-    class ReadyInvocation {
+    class Invocation {
     public:
-        ReadyInvocation(PassRefPtr<CustomElementCallback>, PassRefPtr<Element>);
-        virtual ~ReadyInvocation() { }
-        void invoke() { m_callback->ready(m_element.get()); }
+        Invocation(CustomElementCallback::CallbackType, PassRefPtr<CustomElementCallback>, PassRefPtr<Element>);
         Element* element() { return m_element.get(); }
+        CustomElementCallback::CallbackType type() { return m_type; }
+        void invoke();
 
     private:
+        CustomElementCallback::CallbackType m_type;
         RefPtr<CustomElementCallback> m_callback;
         RefPtr<Element> m_element;
     };
 
-    typedef Vector<OwnPtr<ReadyInvocation> > InvocationList;
+private:
+    explicit CustomElementCallbackDispatcher() { }
+    bool hasQueuedCallbacks() { return !m_invocations.isEmpty(); }
+
+    typedef Vector<OwnPtr<Invocation> > InvocationList;
     InvocationList m_invocations;
 };