PaymentHandler: Implement GetAllPaymentApps().

content/public/browser/payment_instrument.h

Index: content/public/browser/payment_instrument.h
diff --git a/content/public/browser/payment_instrument.h b/content/public/browser/payment_instrument.h
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+// Copyright 2017 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 CONTENT_PUBLIC_BROWSER_PAYMENT_INSTRUMENT_H_
+#define CONTENT_PUBLIC_BROWSER_PAYMENT_INSTRUMENT_H_
+
+#include <stdint.h>
+#include <string>
+#include <vector>
+
+#include "content/common/content_export.h"
+#include "url/gurl.h"
+
+namespace content {
+
+// This class represents the stored payment instrument in UA.
+struct CONTENT_EXPORT PaymentInstrument {
+  PaymentInstrument();
+  ~PaymentInstrument();
+
+  // Id of the service worker registration this instrument is associated with.
+  int64_t registration_id;
+
+  // Id of this payment instrument. This key will be passed to the payment
+  // handler to indicate the instrument selected by the user.
+  std::string instrument_key;
+
+  // Origin of the payment app provider that provides this payment instrument.
+  GURL origin;
+
+  // Label for this payment instrument.
+  std::string name;
+
+  // A list of one or more payment method identifiers of the payment methods
+  // supported by this payment instrument.
+  std::vector<std::string> enabled_methods;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_PAYMENT_INSTRUMENT_H_