Update Custom Elements API to new names.

Source/core/dom/custom/CustomElement.cpp

Index: Source/core/dom/custom/CustomElement.cpp
diff --git a/Source/core/dom/custom/CustomElement.cpp b/Source/core/dom/custom/CustomElement.cpp
index eea313cd8340b815bc6c77029916406bfa2c9059..0dc1683ca39eb1d0e8fcddc8178b5413e162af22 100644
--- a/Source/core/dom/custom/CustomElement.cpp
+++ b/Source/core/dom/custom/CustomElement.cpp
@@ -124,7 +124,7 @@ void CustomElement::didEnterDocument(Element* element, const Document& document)
     ASSERT(element->customElementState() == Element::Upgraded);
     if (!document.domWindow())
         return;
-    CustomElementCallbackScheduler::scheduleEnteredViewCallback(definitionFor(element)->callbacks(), element);
+    CustomElementCallbackScheduler::scheduleAttachedCallback(definitionFor(element)->callbacks(), element);
 }
 
 void CustomElement::didLeaveDocument(Element* element, const Document& document)
@@ -132,7 +132,7 @@ void CustomElement::didLeaveDocument(Element* element, const Document& document)
     ASSERT(element->customElementState() == Element::Upgraded);
     if (!document.domWindow())
         return;
-    CustomElementCallbackScheduler::scheduleLeftViewCallback(definitionFor(element)->callbacks(), element);
+    CustomElementCallbackScheduler::scheduleDetachedCallback(definitionFor(element)->callbacks(), element);
 }
 
 void CustomElement::wasDestroyed(Element* element)