PaymentRequest.abort() should return a promise.

third_party/WebKit/Source/modules/payments/PaymentRequest.h

 // 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.
 
 #ifndef PaymentRequest_h
 #define PaymentRequest_h
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/ScriptWrappable.h"
@@ skipping 33 matching lines @@
     virtual ~PaymentRequest();
 
     struct MethodData {
         MethodData(const Vector<String>& methods, const String& data)
             : supportedMethods(methods), stringifiedData(data) {}
         Vector<String> supportedMethods;
         String stringifiedData;
     };
 
     ScriptPromise show(ScriptState*);
-    void abort(ExceptionState&);
+    ScriptPromise abort(ScriptState*);
 
     PaymentAddress* getShippingAddress() const { return m_shippingAddress.get(); }
     const String& shippingOption() const { return m_shippingOption; }
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(shippingaddresschange);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(shippingoptionchange);
 
     // EventTargetWithInlineData:
     const AtomicString& interfaceName() const override;
     ExecutionContext* getExecutionContext() const override;
@@ skipping 15 matching lines @@
 
     // ActiveScriptWrappable:
     bool hasPendingActivity() const override;
 
     // mojom::blink::PaymentRequestClient:
     void OnShippingAddressChange(mojom::blink::PaymentAddressPtr) override;
     void OnShippingOptionChange(const String& shippingOptionId) override;
     void OnPaymentResponse(mojom::blink::PaymentResponsePtr) override;
     void OnError() override;
     void OnComplete() override;
+    void OnAbort(bool abortedSuccessfully) override;
 
     // Clears the promise resolvers and closes the Mojo connection.
     void clearResolversAndCloseMojoConnection();
 
     Vector<MethodData> m_methodData;
     PaymentDetails m_details;
     PaymentOptions m_options;
     Member<PaymentAddress> m_shippingAddress;
     String m_shippingOption;
     Member<ScriptPromiseResolver> m_showResolver;
     Member<ScriptPromiseResolver> m_completeResolver;
+    Member<ScriptPromiseResolver> m_abortResolver;
     mojom::blink::PaymentRequestPtr m_paymentProvider;
     mojo::Binding<mojom::blink::PaymentRequestClient> m_clientBinding;
 };
 
 } // namespace blink
 
 #endif // PaymentRequest_h