Implement Custom Elements

sky/engine/core/dom/custom2/new_custom_element_registry.h

Index: sky/engine/core/dom/custom2/new_custom_element_registry.h
diff --git a/sky/engine/core/dom/custom2/new_custom_element_registry.h b/sky/engine/core/dom/custom2/new_custom_element_registry.h
new file mode 100644
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+++ b/sky/engine/core/dom/custom2/new_custom_element_registry.h
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+// Copyright 2015 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 SKY_ENGINE_CORE_DOM_CUSTOM2_NEW_CUSTOM_ELEMENT_REGISTRY_H_
+#define SKY_ENGINE_CORE_DOM_CUSTOM2_NEW_CUSTOM_ELEMENT_REGISTRY_H_
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "sky/engine/core/dom/Element.h"
+#include "sky/engine/tonic/dart_state.h"
+#include "sky/engine/tonic/dart_value.h"
+#include "sky/engine/wtf/HashMap.h"
+#include "sky/engine/wtf/PassRefPtr.h"
+#include "sky/engine/wtf/RefCounted.h"
+#include "sky/engine/wtf/RefPtr.h"
+#include "sky/engine/wtf/text/AtomicString.h"
+
+namespace blink {
+class Document;
+
+class NewCustomElementRegistry : public RefCounted<NewCustomElementRegistry> {
+ public:
+  static PassRefPtr<NewCustomElementRegistry> Create() {
+    return adoptRef(new NewCustomElementRegistry());
+  }
+
+  ~NewCustomElementRegistry();
+
+  void RegisterElement(const AtomicString& name, PassRefPtr<DartValue> type);
+  PassRefPtr<Element> CreateElement(Document& document, const AtomicString& name);
+
+  const base::WeakPtr<DartState>& dart_state() const { return dart_state_; }
+
+ private:
+  NewCustomElementRegistry();
+
+  base::WeakPtr<DartState> dart_state_;
+  HashMap<AtomicString, RefPtr<DartValue>> registrations_;
+
+  DISALLOW_COPY_AND_ASSIGN(NewCustomElementRegistry);
+};
+
+} // namespace blink
+
+#endif  // SKY_ENGINE_CORE_DOM_CUSTOM2_NEW_CUSTOM_ELEMENT_REGISTRY_H_