PaymentHandler: PaymentRequestEvent.total should be |object| type.

third_party/WebKit/Source/modules/payments/PaymentRequestEvent.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/payments/PaymentRequestEvent.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/workers/WorkerGlobalScope.h"
 #include "core/workers/WorkerLocation.h"
 #include "modules/serviceworkers/RespondWithObserver.h"
 #include "modules/serviceworkers/ServiceWorkerGlobalScopeClient.h"
 #include "modules/serviceworkers/ServiceWorkerWindowClientCallback.h"
+#include "platform/bindings/ScriptState.h"
 #include "platform/wtf/PtrUtil.h"
 #include "platform/wtf/text/AtomicString.h"
 
 namespace blink {
 
 PaymentRequestEvent* PaymentRequestEvent::Create(
     const AtomicString& type,
     const PaymentRequestEventInit& initializer) {
   return new PaymentRequestEvent(type, initializer, nullptr, nullptr);
 }
@@ skipping 22 matching lines @@
 }
 
 const String& PaymentRequestEvent::paymentRequestId() const {
   return payment_request_id_;
 }
 
 const HeapVector<PaymentMethodData>& PaymentRequestEvent::methodData() const {
   return method_data_;
 }
 
-void PaymentRequestEvent::total(PaymentItem& value) const {
-  value = total_;
+const ScriptValue PaymentRequestEvent::total(ScriptState* script_state) const {
+  return ScriptValue::From(script_state, total_);
 }
 
 const HeapVector<PaymentDetailsModifier>& PaymentRequestEvent::modifiers()
     const {
   return modifiers_;
 }
 
 const String& PaymentRequestEvent::instrumentKey() const {
   return instrument_key_;
 }
@@ skipping 64 matching lines @@
       top_level_origin_(initializer.topLevelOrigin()),
       payment_request_origin_(initializer.paymentRequestOrigin()),
       payment_request_id_(initializer.paymentRequestId()),
       method_data_(std::move(initializer.methodData())),
       total_(initializer.total()),
       modifiers_(initializer.modifiers()),
       instrument_key_(initializer.instrumentKey()),
       observer_(respond_with_observer) {}
 
 }  // namespace blink