PaymentApp: Blink side of payment request event dispatching in service worker.

third_party/WebKit/public/platform/modules/payments/WebPaymentCurrencyAmount.h

Index: third_party/WebKit/public/platform/modules/payments/WebPaymentCurrencyAmount.h
diff --git a/third_party/WebKit/public/platform/modules/payments/WebPaymentCurrencyAmount.h b/third_party/WebKit/public/platform/modules/payments/WebPaymentCurrencyAmount.h
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index 0000000000000000000000000000000000000000..c9057669ad5ff5b9e69c4872cb723182ab53a142
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+++ b/third_party/WebKit/public/platform/modules/payments/WebPaymentCurrencyAmount.h
@@ -0,0 +1,21 @@
+// 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 WebPaymentCurrencyAmount_h
+#define WebPaymentCurrencyAmount_h
+
+#include "public/platform/WebString.h"
+
+namespace blink {
+
+// https://w3c.github.io/browser-payment-api/#paymentcurrencyamount-dictionary
+struct WebPaymentCurrencyAmount {
+  WebString currency;
+  WebString value;
+  WebString currencySystem;
+};
+
+}  // namespace blink
+
+#endif  // WebPaymentCurrencyAmount_h