Custom Elements: Encapsulates Async and Sync Queues into one class.

Source/core/dom/custom/CustomElementMicrotaskQueueBase.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/CustomElementMicrotaskQueueBase.h"
+
+#include "core/dom/custom/CustomElementCallbackDispatcher.h"
+
+namespace WebCore {
+
+void CustomElementMicrotaskQueueBase::dispatch()
+{
+    ASSERT(!m_inDispatch);
+    m_inDispatch = true;
+    doDispatch();
+    m_inDispatch = false;
+}
+
+void CustomElementMicrotaskQueueBase::trace(Visitor* visitor)
+{
+    visitor->trace(m_queue);
+}
+
+#if !defined(NDEBUG)
+void CustomElementMicrotaskQueueBase::show(unsigned indent)
+{
+    for (unsigned q = 0; q < m_queue.size(); ++q) {
+        if (m_queue[q])
+            m_queue[q]->show(indent);
+        else
+            fprintf(stderr, "%*snull\n", indent, "");
+    }
+}
+#endif
+
+} // namespace WebCore