:D

sebsg, this is due to moving the "select" item from position 0 to position "n". Can you change this line:

https://cs.chromium.org/chromium/src/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorDropdownField.java?rcl=0&l=151

...to be "return dropdownKeyValues.size();" instead and see if the issue is fixed?

You can simulate card-scanning on your local dev build by hard-coding mCanScan=true and changing mCardScanner.scan() call to be onScanCompleted() instead. (Only for your local testing, of course.)

https://cs.chromium.org/chromium/src/chrome/android/java/src/org/chromium/chrome/browser/payments/CardEditor.java?rcl=0&l=400

Yeah this would work now but will probably not once the multiple "Select" fix has landed. I'll investigate, thanks for the tips :)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/7d128a135ff5b12e0c581a1e137b7d852cb96a5d

commit 7d128a135ff5b12e0c581a1e137b7d852cb96a5d
Author: sebsg <sebsg@chromium.org>
Date: Fri Nov 04 22:18:30 2016

[Payments] Fix credit card scanning billing address bug.

BUG= 662115 

Review-Url: https://codereview.chromium.org/2475323003
Cr-Commit-Position: refs/heads/master@{#430034}

[modify] https://crrev.com/7d128a135ff5b12e0c581a1e137b7d852cb96a5d/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorDropdownField.java

Seb, can you merge this into M55, since CC scanning is available in M55?

Sure!

Oh wait, I think the issue was introduced in a M56 feature (hide the select option from the dropdown) So the issue should be inexistant in M55

OK, SG :)