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

third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceGarbageCollected.cpp

Index: third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceGarbageCollected.cpp
diff --git a/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceGarbageCollected.cpp b/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceGarbageCollected.cpp
index 9a34157d3714eefbf48058f17b6e6402dee755b6..e27246a5dac114792fd34e79ef11b2ab076fcbfd 100644
--- a/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceGarbageCollected.cpp
+++ b/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterfaceGarbageCollected.cpp
@@ -12,6 +12,8 @@
 #include "V8TestInterfaceGarbageCollected.h"
 
 #include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/IDLTypes.h"
+#include "bindings/core/v8/NativeValueTraitsImpl.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/V8DOMConfiguration.h"
@@ -408,4 +410,8 @@ TestInterfaceGarbageCollected* V8TestInterfaceGarbageCollected::toImplWithTypeCh
   return hasInstance(value, isolate) ? toImpl(v8::Local<v8::Object>::Cast(value)) : nullptr;
 }
 
+TestInterfaceGarbageCollected* NativeValueTraits<TestInterfaceGarbageCollected>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState) {
+  return V8TestInterfaceGarbageCollected::toImplWithTypeCheck(isolate, value);
+}
+
 }  // namespace blink