The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/dcdd172565099e4562750373a4ace19e43936949

commit dcdd172565099e4562750373a4ace19e43936949
Author: rouslan <rouslan@chromium.org>
Date: Mon Oct 24 20:26:28 2016

Re-expand payments UI after cancelling out of a payment app.

If the user launches a payment app from expanded payments UI and cancels
the payment in the app, then the payments UI should again be expanded.

BUG= 658222 

Review-Url: https://codereview.chromium.org/2441833003
Cr-Commit-Position: refs/heads/master@{#427135}

[modify] https://crrev.com/dcdd172565099e4562750373a4ace19e43936949/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentRequestUI.java