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

Source/core/dom/custom/CustomElementSyncMicrotaskQueue.h

Index: Source/core/dom/custom/CustomElementSyncMicrotaskQueue.h
diff --git a/Source/core/dom/custom/CustomElementSyncMicrotaskQueue.h b/Source/core/dom/custom/CustomElementSyncMicrotaskQueue.h
new file mode 100644
index 0000000000000000000000000000000000000000..67bca95f642c5a89e4e479dd5ec42355b6c12d78
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+++ b/Source/core/dom/custom/CustomElementSyncMicrotaskQueue.h
@@ -0,0 +1,25 @@
+// 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.
+
+#ifndef CustomElementSyncMicrotaskQueue_h
+#define CustomElementSyncMicrotaskQueue_h
+
+#include "core/dom/custom/CustomElementMicrotaskQueueBase.h"
+
+namespace WebCore {
+
+class CustomElementSyncMicrotaskQueue : public CustomElementMicrotaskQueueBase {
+public:
+    static PassRefPtrWillBeRawPtr<CustomElementSyncMicrotaskQueue> create() { return adoptRefWillBeNoop(new CustomElementSyncMicrotaskQueue()); }
+
+    void enqueue(PassOwnPtrWillBeRawPtr<CustomElementMicrotaskStep>);
+
+private:
+    CustomElementSyncMicrotaskQueue() { }
+    virtual void doDispatch();
+};
+
+}
+
+#endif