HTML Imports: Get rid of needsProcessOrStop() from dom/custom/

Source/core/dom/custom/CustomElementMicrotaskDispatcher.h

Index: Source/core/dom/custom/CustomElementMicrotaskDispatcher.h
diff --git a/Source/core/dom/custom/CustomElementMicrotaskDispatcher.h b/Source/core/dom/custom/CustomElementMicrotaskDispatcher.h
index a3f7669c94426d2b05ebba69e2bf1c65e59f7ae3..95e27dc72021242d27859d2c9e56784a58bf83de 100644
--- a/Source/core/dom/custom/CustomElementMicrotaskDispatcher.h
+++ b/Source/core/dom/custom/CustomElementMicrotaskDispatcher.h
@@ -5,28 +5,31 @@
 #ifndef CustomElementMicrotaskDispatcher_h
 #define CustomElementMicrotaskDispatcher_h
 
-#include "core/dom/custom/CustomElementMicrotaskQueue.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
+class CustomElementAsyncImportMicrotaskQueue;
 class CustomElementCallbackQueue;
 class CustomElementMicrotaskImportStep;
+class CustomElementMicrotaskQueue;
 class CustomElementMicrotaskStep;
 class HTMLImportLoader;
 
 class CustomElementMicrotaskDispatcher {
     WTF_MAKE_NONCOPYABLE(CustomElementMicrotaskDispatcher);
 public:
-    ~CustomElementMicrotaskDispatcher() { }
+    ~CustomElementMicrotaskDispatcher();
 
     static CustomElementMicrotaskDispatcher& instance();
 
     void enqueue(HTMLImportLoader*, PassOwnPtr<CustomElementMicrotaskStep>);
+    void enqueue(HTMLImportLoader*, PassOwnPtr<CustomElementMicrotaskImportStep>);
     void enqueue(CustomElementCallbackQueue*);
 
+
     void importDidFinish(CustomElementMicrotaskImportStep*);
 
     bool elementQueueIsEmpty() { return m_elements.isEmpty(); }
@@ -38,6 +41,7 @@ public:
 private:
     CustomElementMicrotaskDispatcher();
 
+    void willOrDidEnqueueStep();
     void ensureMicrotaskScheduled();
 
     static void dispatch();
@@ -51,6 +55,7 @@ private:
     } m_phase;
 
     RefPtr<CustomElementMicrotaskQueue> m_resolutionAndImports;
+    RefPtr<CustomElementAsyncImportMicrotaskQueue> m_asyncImports;
     Vector<CustomElementCallbackQueue*> m_elements;
 };