Revert "Revert "Dartium changes for custom element lifecycle events.""

Source/bindings/dart/DartDOMWrapper.cpp

Index: Source/bindings/dart/DartDOMWrapper.cpp
diff --git a/Source/bindings/dart/DartDOMWrapper.cpp b/Source/bindings/dart/DartDOMWrapper.cpp
index 9d3482b8fc3529609c3af9f355596a98db534239..3f51bc5a3e351fbc1f613783666331508f4a63d3 100644
--- a/Source/bindings/dart/DartDOMWrapper.cpp
+++ b/Source/bindings/dart/DartDOMWrapper.cpp
@@ -31,7 +31,6 @@
 #include "bindings/dart/DartDOMWrapper.h"
 
 #include "DartCSSStyleDeclaration.h"
-#include "DartCustomElement.h"
 #include "DartDOMException.h"
 #include "DartHTMLElement.h"
 #include "DartNode.h"
@@ -69,14 +68,6 @@ Dart_Handle DartDOMWrapper::dartClass(const char* className, const char* library
     return type;
 }
 
-Dart_WeakPersistentHandle DartDOMWrapper::lookupCustomElementWrapper(
-    DartDOMData* domData, Dart_WeakPersistentHandle wrapper, Node* domObject)
-{
-    ASSERT(wrapper);
-    ASSERT(domObject->isCustomElement());
-    return DartCustomElement::lookupWrapper(domData, wrapper, reinterpret_cast<Element*>(domObject));
-}
-
 Dart_Handle DartDOMWrapper::exceptionCodeToDartException(ExceptionCode exceptionCode)
 {
     ASSERT(exceptionCode > 0);