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

components/payments/mojom/payment_app.mojom

 // 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/content/payment_request.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,
 };
 
@@ skipping 30 matching lines @@
   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);
 };