WIP bindings: Add support for the record<K,V> WebIDL type.

third_party/WebKit/Source/bindings/tests/results/core/VoidCallbackFunctionTypedef.h

 // 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.
 
 // This file has been auto-generated by code_generator_v8.py.
 // DO NOT MODIFY!
 
 // This file has been generated from the Jinja2 template in
 // third_party/WebKit/Source/bindings/templates/callback_function.h.tmpl
 
 // clang-format off
 
 #ifndef VoidCallbackFunctionTypedef_h
 #define VoidCallbackFunctionTypedef_h
 
+#include "bindings/core/v8/NativeValueTraits.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "bindings/core/v8/TraceWrapperV8Reference.h"
 #include "core/CoreExport.h"
 #include "platform/heap/Handle.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class ScriptState;
 
@@ skipping 12 matching lines @@
     return m_callback.newLocal(isolate);
   }
 
  private:
   VoidCallbackFunctionTypedef(ScriptState*, v8::Local<v8::Function>);
 
   RefPtr<ScriptState> m_scriptState;
   TraceWrapperV8Reference<v8::Function> m_callback;
 };
 
+template <>
+struct NativeValueTraits<VoidCallbackFunctionTypedef> {
+  using ImplType = VoidCallbackFunctionTypedef;
+  CORE_EXPORT static VoidCallbackFunctionTypedef* nativeValue(v8::Isolate*, v8::Local<v8::Value>, ExceptionState&);
+};
+
 }  // namespace blink
 
 #endif  // VoidCallbackFunctionTypedef_h