Separate Custom Element resolution and upgrade/createdCallback.

Source/core/dom/custom/CustomElementMicrotaskDispatcher.cpp

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "core/dom/custom/CustomElementMicrotaskDispatcher.h"
+
+#include "core/dom/custom/CustomElementCallbackDispatcher.h"
+#include "core/dom/custom/CustomElementCallbackQueue.h"
+#include "core/dom/custom/CustomElementMicrotaskImportStep.h"
+#include "core/html/HTMLImport.h"
+
+namespace WebCore {
+
+static const CustomElementCallbackQueue::ElementQueueId kMicrotaskQueueId = 0;
+
+void CustomElementMicrotaskDispatcher::enqueue(HTMLImport* import, PassOwnPtr<CustomElementMicrotaskStep> step)
+{
+    ASSERT(m_phase == Quiescent || m_phase == DispatchingCallbacks);
+    if (import && import->customElementMicrotaskStep())
+        import->customElementMicrotaskStep()->enqueue(step);
+    else
+        m_resolutionAndImports.enqueue(step);
+}
+
+void CustomElementMicrotaskDispatcher::enqueue(CustomElementCallbackQueue* queue)
+{
+    ASSERT(m_phase == Quiescent || m_phase == Resolving);
+    queue->setOwner(kMicrotaskQueueId);
+    m_elements.append(queue);
+}
+
+bool CustomElementMicrotaskDispatcher::dispatch()
+{
+    ASSERT(m_phase == Quiescent);
+
+    bool didWork = false;
+
+    m_phase = Resolving;
+    m_resolutionAndImports.dispatch();
+
+    m_phase = DispatchingCallbacks;
+    for (Vector<CustomElementCallbackQueue*>::iterator it = m_elements.begin();it != m_elements.end(); ++it) {
+        // Created callback may enqueue an attached callback.
+        CustomElementCallbackDispatcher::CallbackDeliveryScope scope;
+        (*it)->processInElementQueue(kMicrotaskQueueId);
+
+        didWork = true;
+    }
+
+    m_elements.clear();
+    m_phase = Quiescent;
+
+    return didWork;
+}
+
+} // namespace WebCore