bindings: Add C++ versions of WebIDL types and generalize NativeValueTraits.

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

Index: third_party/WebKit/Source/bindings/tests/results/core/TestInterfaceOrLong.h
diff --git a/third_party/WebKit/Source/bindings/tests/results/core/TestInterfaceOrLong.h b/third_party/WebKit/Source/bindings/tests/results/core/TestInterfaceOrLong.h
index 0cbd1ed8f29352ce0fbc55b1d17cf6c12e1e350f..9c531731d6f96caf2fe264aad1a9e071d20268f6 100644
--- a/third_party/WebKit/Source/bindings/tests/results/core/TestInterfaceOrLong.h
+++ b/third_party/WebKit/Source/bindings/tests/results/core/TestInterfaceOrLong.h
@@ -14,6 +14,7 @@
 
 #include "bindings/core/v8/Dictionary.h"
 #include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/NativeValueTraits.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "core/CoreExport.h"
 #include "platform/heap/Handle.h"
@@ -75,10 +76,15 @@ inline void v8SetReturnValue(const CallbackInfo& callbackInfo, TestInterfaceOrLo
 }
 
 template <>
-struct NativeValueTraits<TestInterfaceOrLong> {
+struct NativeValueTraits<TestInterfaceOrLong> : public NativeValueTraitsBase<TestInterfaceOrLong> {
   CORE_EXPORT static TestInterfaceOrLong nativeValue(v8::Isolate*, v8::Local<v8::Value>, ExceptionState&);
 };
 
+template <>
+struct V8TypeOf<TestInterfaceOrLong> {
+  typedef V8TestInterfaceOrLong Type;
+};
+
 }  // namespace blink
 
 // We need to set canInitializeWithMemset=true because HeapVector supports