Reorgnize the platform-specific files

atom/browser/mac/in_app_purchase.h

@@ -0,0 +1,30 @@
+// Copyright (c) 2017 Amaplex Software, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_BROWSER_MAC_IN_APP_PURCHASE_H_
+#define ATOM_BROWSER_MAC_IN_APP_PURCHASE_H_
+
+#include <string>
+
+#include "base/callback.h"
+
+namespace in_app_purchase {
+
+// --------------------------- Typedefs ---------------------------
+
+typedef base::Callback<void(bool isProductValid)> InAppPurchaseCallback;
+
+// --------------------------- Functions ---------------------------
+
+bool CanMakePayments(void);
+
+std::string GetReceiptURL(void);
+
+void PurchaseProduct(const std::string& productID,
+                     const int quantity,
+                     const InAppPurchaseCallback& callback);
+
+}  // namespace in_app_purchase
+
+#endif  // ATOM_BROWSER_MAC_IN_APP_PURCHASE_H_