WIP bindings: Expand usage of NativeValueTraits.

third_party/WebKit/Source/bindings/core/v8/Dictionary.h

 /*
  * Copyright (C) 2010 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 met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 90 matching lines @@
   enum class ValueType {
     Undefined,
     Null,
     Object
   } m_valueType = ValueType::Undefined;
   v8::Local<v8::Object> m_dictionaryObject;  // an Object or empty
 };
 
 template <>
 struct NativeValueTraits<Dictionary> {
+  using ImplType = Dictionary;
   static Dictionary nativeValue(v8::Isolate* isolate,
                                 v8::Local<v8::Value> value,
                                 ExceptionState& exceptionState) {
     return Dictionary(isolate, value, exceptionState);
   }
 };
 
 // DictionaryHelper is a collection of static methods for getting or
 // converting a value from Dictionary.
 struct DictionaryHelper {
@@ skipping 23 matching lines @@
   static bool get(const Dictionary&,
                   const StringView& key,
                   PointerType<T>& value);
   template <typename T>
   static bool get(const Dictionary&, const StringView& key, Nullable<T>& value);
 };
 
 }  // namespace blink
 
 #endif  // Dictionary_h