[OriginTrials] Allow origin trials to be installed without an instance object.

third_party/WebKit/Source/bindings/tests/results/modules/V8TestInterfacePartial.cpp

Index: third_party/WebKit/Source/bindings/tests/results/modules/V8TestInterfacePartial.cpp
diff --git a/third_party/WebKit/Source/bindings/tests/results/modules/V8TestInterfacePartial.cpp b/third_party/WebKit/Source/bindings/tests/results/modules/V8TestInterfacePartial.cpp
index aa1b4ceafdd510d33a4ba46be1b0ff1ea6c781a2..eafe7ab0b51b2728b0020c8f751bee8682a65cd5 100644
--- a/third_party/WebKit/Source/bindings/tests/results/modules/V8TestInterfacePartial.cpp
+++ b/third_party/WebKit/Source/bindings/tests/results/modules/V8TestInterfacePartial.cpp
@@ -384,13 +384,11 @@ void V8TestInterfacePartial::installV8TestInterfaceTemplate(v8::Isolate* isolate
 
 void V8TestInterfacePartial::installOriginTrialPartialFeature(ScriptState* scriptState, v8::Local<v8::Object> instance)
 {
-    v8::Local<v8::Object> prototype = instance->GetPrototype()->ToObject(scriptState->isolate());
-
-    V8PerIsolateData* perIsolateData = V8PerIsolateData::from(scriptState->isolate());
-    v8::Local<v8::FunctionTemplate> interfaceTemplate = perIsolateData->findInterfaceTemplate(scriptState->world(), &V8TestInterface::wrapperTypeInfo);
+    v8::Local<v8::FunctionTemplate> interfaceTemplate = V8TestInterface::wrapperTypeInfo.domTemplate(scriptState->isolate(), scriptState->world());
     v8::Local<v8::Signature> signature = v8::Signature::New(scriptState->isolate(), interfaceTemplate);
     ALLOW_UNUSED_LOCAL(signature);
     V8PerContextData* perContextData = V8PerContextData::from(scriptState->context());
+    v8::Local<v8::Object> prototype = perContextData->prototypeForType(&V8TestInterface::wrapperTypeInfo);
     v8::Local<v8::Function> interface = perContextData->constructorForType(&V8TestInterface::wrapperTypeInfo);
     ALLOW_UNUSED_LOCAL(interface);
     const V8DOMConfiguration::AccessorConfiguration accessorpartial4LongAttributeConfiguration = \
@@ -404,6 +402,11 @@ void V8TestInterfacePartial::installOriginTrialPartialFeature(ScriptState* scrip
     const V8DOMConfiguration::MethodConfiguration methodPartial4VoidmethodConfiguration = {"partial4VoidMethod", TestInterfaceImplementationPartialV8Internal::partial4VoidMethodMethodCallback, 0, 0, v8::None, V8DOMConfiguration::ExposedToAllScripts, V8DOMConfiguration::OnPrototype};
     V8DOMConfiguration::installMethod(scriptState->isolate(), scriptState->world(), instance, prototype, interface, signature, methodPartial4VoidmethodConfiguration);
 }
+
+void V8TestInterfacePartial::installOriginTrialPartialFeature(ScriptState* scriptState)
+{
+    installOriginTrialPartialFeature(scriptState, v8::Local<v8::Object>());
+}
 void V8TestInterfacePartial::preparePrototypeAndInterfaceObject(v8::Local<v8::Context> context, const DOMWrapperWorld& world, v8::Local<v8::Object> prototypeObject, v8::Local<v8::Function> interfaceObject, v8::Local<v8::FunctionTemplate> interfaceTemplate)
 {
     V8TestInterface::preparePrototypeAndInterfaceObject(context, world, prototypeObject, interfaceObject, interfaceTemplate);