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

third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceNamedConstructor2.cpp

Index: third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceNamedConstructor2.cpp
diff --git a/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceNamedConstructor2.cpp b/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceNamedConstructor2.cpp
index 04bec68bce55b6f09ee8b7af2c6963f4aeca93be..5938d94bbbd8c736dbf8604a0d739ff385b3d0c8 100644
--- a/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceNamedConstructor2.cpp
+++ b/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceNamedConstructor2.cpp
@@ -12,6 +12,8 @@
 #include "V8TestInterfaceNamedConstructor2.h"
 
 #include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/IDLTypes.h"
+#include "bindings/core/v8/NativeValueTraitsImpl.h"
 #include "bindings/core/v8/V8DOMConfiguration.h"
 #include "bindings/core/v8/V8ObjectConstructor.h"
 #include "core/dom/Document.h"
@@ -138,4 +140,8 @@ TestInterfaceNamedConstructor2* V8TestInterfaceNamedConstructor2::toImplWithType
   return hasInstance(value, isolate) ? toImpl(v8::Local<v8::Object>::Cast(value)) : nullptr;
 }
 
+TestInterfaceNamedConstructor2* NativeValueTraits<TestInterfaceNamedConstructor2>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState) {
+  return V8TestInterfaceNamedConstructor2::toImplWithTypeCheck(isolate, value);
+}
+
 }  // namespace blink