Process Custom Elements in post-order.

Source/core/dom/CustomElementRegistrationContext.h

Index: Source/core/dom/CustomElementRegistrationContext.h
diff --git a/Source/core/dom/CustomElementRegistrationContext.h b/Source/core/dom/CustomElementRegistrationContext.h
index 64099d398594c316fdb4d1266dd7698c7caa5c40..810d26c4220b9d6b833c648341901d9eb788dfde 100644
--- a/Source/core/dom/CustomElementRegistrationContext.h
+++ b/Source/core/dom/CustomElementRegistrationContext.h
@@ -57,12 +57,9 @@ public:
     void registerElement(Document*, CustomElementConstructorBuilder*, const AtomicString& type, ExceptionState&);
 
     // Instance creation
-    PassRefPtr<Element> createCustomTagElement(Document*, const QualifiedName&);
+    PassRefPtr<Element> createCustomTagElement(Document*, const QualifiedName&, bool byParser = false);

[dglazkov, 2013/08/14 20:22:34]

Can we switch to use enums here?

     static void setIsAttributeAndTypeExtension(Element*, const AtomicString& type);
-    static void setTypeExtension(Element*, const AtomicString& type);
-
-    // Instance lifecycle
-    void customElementWasDestroyed(Element*);
+    static void setTypeExtension(Element*, const AtomicString& type, bool byParser = false);
 
 protected:
     CustomElementRegistrationContext() { }