Make payment manifest download/parse cross-platform

components/payments/content/payment_manifest_downloader.h

 // 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 COMPONENTS_PAYMENTS_CONTENT_ANDROID_PAYMENT_MANIFEST_DOWNLOADER_H_
-#define COMPONENTS_PAYMENTS_CONTENT_ANDROID_PAYMENT_MANIFEST_DOWNLOADER_H_
+#ifndef COMPONENTS_PAYMENTS_CONTENT_PAYMENT_MANIFEST_DOWNLOADER_H_
+#define COMPONENTS_PAYMENTS_CONTENT_PAYMENT_MANIFEST_DOWNLOADER_H_
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "url/gurl.h"
 
@@ skipping 71 matching lines @@
   Delegate* delegate_;
 
   bool is_downloading_http_link_header_;
   std::unique_ptr<net::URLFetcher> fetcher_;
 
   DISALLOW_COPY_AND_ASSIGN(PaymentManifestDownloader);
 };
 
 }  // namespace payments
 
-#endif  // COMPONENTS_PAYMENTS_CONTENT_ANDROID_PAYMENT_MANIFEST_DOWNLOADER_H_
+#endif  // COMPONENTS_PAYMENTS_CONTENT_PAYMENT_MANIFEST_DOWNLOADER_H_