[WIP][NotForLand] IDL dictionary support

Source/core/dom/SomeDictionaryUser.h

Index: Source/core/dom/SomeDictionaryUser.h
diff --git a/Source/core/dom/SomeDictionaryUser.h b/Source/core/dom/SomeDictionaryUser.h
new file mode 100644
index 0000000000000000000000000000000000000000..49582e4cd17486c276fb16f3dad84d2aa5d3e6a7
--- /dev/null
+++ b/Source/core/dom/SomeDictionaryUser.h
@@ -0,0 +1,38 @@
+// NOT FOR LAND
+#ifndef SomeDictionaryUser_h
+#define SomeDictionaryUser_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "core/dom/Element.h"
+#include "core/dom/SomeDictionary.h"
+#include "platform/heap/Handle.h"
+#include "wtf/text/WTFString.h"
+
+namespace WebCore {
+
+class SomeDictionaryUser : public RefCountedWillBeGarbageCollected<SomeDictionaryUser>, public ScriptWrappable {
+public:
+    static PassRefPtrWillBeRawPtr<SomeDictionaryUser> create()
+    {
+        return adoptRefWillBeNoop(new SomeDictionaryUser());
+    }
+    virtual ~SomeDictionaryUser();
+
+    void set(const SomeDictionary*);
+    SomeDictionary* get();
+
+    // void trace();
+
+private:
+    SomeDictionaryUser();
+
+    unsigned m_a;
+    bool m_hasA;

[haraken, 2014/07/21 16:11:59]

Can we use Nullable<unsigned> instead of having m_a and m_hasA? You can look at
bindings/core/v8/Nullable.h.

[bashi, 2014/07/22 02:33:58]

Yes, this class is just an example of an user of IDL dictionaries and there is
no reason to use boolean flags. Users will be encouraged to use Nullable<T> if
needed.

+    unsigned m_b;
+    String m_stringMember;
+    RefPtrWillBeMember<Element> m_element;
+};
+
+}
+
+#endif // SomeDictionaryUser_h