Revert of [Payments] move //components/payments/content/*.mojom files to //components/payments/mojom

components/payments/mojom/payment_app.mojom

Index: components/payments/mojom/payment_app.mojom
diff --git a/components/payments/mojom/payment_app.mojom b/components/payments/mojom/payment_app.mojom
deleted file mode 100644
index f7eae0a4fdd2158202c5876c31694f92853ee763..0000000000000000000000000000000000000000
--- a/components/payments/mojom/payment_app.mojom
+++ /dev/null
@@ -1,57 +0,0 @@
-// 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.
-
-module payments.mojom;
-
-import "components/payments/mojom/payment_request.mojom";
-import "mojo/common/time.mojom";
-import "url/mojo/url.mojom";
-
-enum PaymentAppManifestError {
-  NONE,
-  NOT_IMPLEMENTED,
-  NO_ACTIVE_WORKER,
-  MANIFEST_STORAGE_OPERATION_FAILED,
-};
-
-struct PaymentAppOption {
-  string name;
-  string? icon;
-  string id;
-  array<string> enabled_methods;
-};
-
-struct PaymentAppManifest {
-  string name;
-  string? icon;
-  array<PaymentAppOption> options;
-};
-
-interface PaymentManager {
-  Init(string service_worker_scope);
-  SetManifest(PaymentAppManifest payment_app_manifest)
-      => (PaymentAppManifestError error);
-  GetManifest()
-      => (PaymentAppManifest payment_app_manifest, PaymentAppManifestError error);
-};
-
-struct PaymentAppRequest {
-  url.mojom.Url origin;
-  array<PaymentMethodData> methodData;
-  PaymentItem total;
-  array<PaymentDetailsModifier> modifiers;
-  string optionId;
-};
-
-struct PaymentAppResponse {
-  string method_name;
-  string stringified_details;
-};
-
-// This interface is provided to pass a payment app response from payment
-// request event in renderer side to browser side by calling respondWith().
-interface PaymentAppResponseCallback {
-  OnPaymentAppResponse(PaymentAppResponse response,
-                       mojo.common.mojom.Time dispatch_event_time);
-};