The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/58a812ee3d9dc3c439647819d43a906c170ea29c

commit 58a812ee3d9dc3c439647819d43a906c170ea29c
Author: Jinho Bang <jinho.bang@samsung.com>
Date: Fri Apr 20 13:51:58 2018

PaymentHandler: Add [SameObject] to paymentManager and instruments attr

Related spec change:
  https://github.com/w3c/payment-handler/pull/293

Bug:  833535 
Change-Id: Id7d0cad0f150a73e2932bd8f81f9e5650830a2c0
Reviewed-on: https://chromium-review.googlesource.com/1013660
Reviewed-by: Ganggui Tang <gogerald@chromium.org>
Commit-Queue: Jinho Bang <jinho.bang@samsung.com>
Cr-Commit-Position: refs/heads/master@{#552319}
[add] https://crrev.com/58a812ee3d9dc3c439647819d43a906c170ea29c/third_party/WebKit/LayoutTests/external/wpt/payment-handler/same-object-attributes.https.html
[modify] https://crrev.com/58a812ee3d9dc3c439647819d43a906c170ea29c/third_party/blink/renderer/modules/payments/payment_app_service_worker_registration.idl
[modify] https://crrev.com/58a812ee3d9dc3c439647819d43a906c170ea29c/third_party/blink/renderer/modules/payments/payment_manager.idl