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

third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceEventInitConstructor.cpp

Index: third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceEventInitConstructor.cpp
diff --git a/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceEventInitConstructor.cpp b/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceEventInitConstructor.cpp
index 9d4223f9d5b57b868ec3d3b8ae82f0b8ed48d990..86975d5a95ce204314d85bef002e808f2fa72ec1 100644
--- a/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceEventInitConstructor.cpp
+++ b/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceEventInitConstructor.cpp
@@ -12,6 +12,8 @@
 #include "V8TestInterfaceEventInitConstructor.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 "bindings/core/v8/V8TestInterfaceEventInit.h"
@@ -160,4 +162,8 @@ TestInterfaceEventInitConstructor* V8TestInterfaceEventInitConstructor::toImplWi
   return hasInstance(value, isolate) ? toImpl(v8::Local<v8::Object>::Cast(value)) : nullptr;
 }
 
+TestInterfaceEventInitConstructor* NativeValueTraits<TestInterfaceEventInitConstructor>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState) {
+  return V8TestInterfaceEventInitConstructor::toImplWithTypeCheck(isolate, value);
+}
+
 }  // namespace blink