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

third_party/WebKit/Source/bindings/tests/results/core/V8SVGTestInterface.cpp

Index: third_party/WebKit/Source/bindings/tests/results/core/V8SVGTestInterface.cpp
diff --git a/third_party/WebKit/Source/bindings/tests/results/core/V8SVGTestInterface.cpp b/third_party/WebKit/Source/bindings/tests/results/core/V8SVGTestInterface.cpp
index 71fb98f5639aaf14201c5a0e27b8a030546a213e..489122c3fe3e68d8532b290b3a8b0333a7b8b127 100644
--- a/third_party/WebKit/Source/bindings/tests/results/core/V8SVGTestInterface.cpp
+++ b/third_party/WebKit/Source/bindings/tests/results/core/V8SVGTestInterface.cpp
@@ -12,6 +12,8 @@
 #include "V8SVGTestInterface.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/SVGNames.h"
@@ -125,4 +127,8 @@ SVGTestInterface* V8SVGTestInterface::toImplWithTypeCheck(v8::Isolate* isolate,
   return hasInstance(value, isolate) ? toImpl(v8::Local<v8::Object>::Cast(value)) : nullptr;
 }
 
+SVGTestInterface* NativeValueTraits<SVGTestInterface>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState) {
+  return V8SVGTestInterface::toImplWithTypeCheck(isolate, value);
+}
+
 }  // namespace blink