Upgrade elements that are created before a custom element definition is registered

Source/core/dom/CustomElementUpgradeCandidateMap.h

Index: Source/core/dom/CustomElementUpgradeCandidateMap.h
diff --git a/Source/core/platform/text/transcoder/FontTranscoder.h b/Source/core/dom/CustomElementUpgradeCandidateMap.h
similarity index 59%
copy from Source/core/platform/text/transcoder/FontTranscoder.h
copy to Source/core/dom/CustomElementUpgradeCandidateMap.h
index 6990a10f725ce42465693adba9172eced45091d2..3c374dc4b3e656b658875e3fe7e41b65e50934a6 100644
--- a/Source/core/platform/text/transcoder/FontTranscoder.h
+++ b/Source/core/dom/CustomElementUpgradeCandidateMap.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010, Google Inc. All rights reserved.
+ * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -28,41 +28,43 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef FontTranscoder_h
-#define FontTranscoder_h
+#ifndef CustomElementUpgradeCandidateMap_h
+#define CustomElementUpgradeCandidateMap_h
 
+#include "core/dom/CustomElementDefinition.h"
+#include "core/dom/Element.h"
 #include <wtf/HashMap.h>
+#include <wtf/HashSet.h>
 #include <wtf/Noncopyable.h>
+#include <wtf/text/AtomicString.h>
 #include <wtf/text/AtomicStringHash.h>
 
 namespace WebCore {
 
-class FontDescription;
-class TextEncoding;
-
-class FontTranscoder {
-    WTF_MAKE_NONCOPYABLE(FontTranscoder); WTF_MAKE_FAST_ALLOCATED;
+class CustomElementUpgradeCandidateMap {
+    WTF_MAKE_NONCOPYABLE(CustomElementUpgradeCandidateMap);
 public:
-    void convert(String& text, const FontDescription&, const TextEncoding* = 0) const;
-    bool needsTranscoding(const FontDescription&, const TextEncoding* = 0) const;
+    CustomElementUpgradeCandidateMap() { }
 
-private:
-    FontTranscoder();
-    ~FontTranscoder(); // Not implemented to make sure nobody accidentally calls delete -- WebCore does not delete singletons.
+    typedef HashSet<Element*> ElementSet;
 
-    enum ConverterType {
-        NoConversion, BackslashToYenSign,
-    };
+    void add(CustomElementDefinition::CustomElementKind, const AtomicString& type, Element*);
+    bool contains(Element*) const;
+    void remove(Element*);
+    ElementSet takeUpgradeCandidatesFor(CustomElementDefinition* definition);
 
-    ConverterType converterType(const FontDescription&, const TextEncoding*) const;
+private:
+    typedef std::pair<CustomElementDefinition::CustomElementKind, AtomicString> RequiredDefinition;
+    typedef HashMap<Element*, RequiredDefinition> UnresolvedElementMap;
+    typedef HashMap<AtomicString, ElementSet> UnresolvedDefinitionMap;
 
-    HashMap<AtomicString, ConverterType> m_converterTypes;
+    bool matches(CustomElementDefinition*, Element*);
 
-    friend FontTranscoder& fontTranscoder();
+    UnresolvedElementMap m_unresolvedElements;
+    UnresolvedDefinitionMap m_unresolvedDefinitions;
 };
 
-FontTranscoder& fontTranscoder();
+}
 
-} // namespace WebCore
+#endif // CustomElementUpgradeCandidateMap_h
 
-#endif // FontTranscoder_h