[Merge M-57] Relax card type handling.

[Merge M-57] Relax card type handling.

Chrome does not yet differentiate between the various `supportedTypes`
['credit', 'debit', 'prepaid'] in `PaymentMethodData.data`. To warn
developers of this behavior, we now allow `supportedTypes` with 1 or 2
arguments and show a warning message in developer console instead:
"Cannot yet distinguish credit, debit, and prepaid cards."

BUG=686119
Review-Url: https://codereview.chromium.org/2659083003
Cr-Commit-Position: refs/heads/master@{#446996}
(cherry picked from commit 06a0d2103e3207a176f4b3b98537106854a4ec00)

Review-Url: https://codereview.chromium.org/2662043002 .
Cr-Commit-Position: refs/branch-heads/2987@{#184}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed: https://chromium.googlesource.com/chromium/src/+/06a557a4c7c5bfdb7bfd3ad058d6f9179464d08b

[please use gerrit instead, 2017-01-30 20:52:15]

Description was changed from

==========
[Merge M-57] Relax card type handling.

Chrome does not yet differentiate between the various `supportedTypes`
['credit', 'debit', 'prepaid'] in `PaymentMethodData.data`. To warn
developers of this behavior, we now allow `supportedTypes` with 1 or 2
arguments and show a warning message in developer console instead:
"Cannot yet distinguish credit, debit, and prepaid cards."

BUG=686119

Review-Url: https://codereview.chromium.org/2659083003
Cr-Commit-Position: refs/heads/master@{#446996}
(cherry picked from commit 06a0d2103e3207a176f4b3b98537106854a4ec00)
==========

to

==========
[Merge M-57] Relax card type handling.

Chrome does not yet differentiate between the various `supportedTypes`
['credit', 'debit', 'prepaid'] in `PaymentMethodData.data`. To warn
developers of this behavior, we now allow `supportedTypes` with 1 or 2
arguments and show a warning message in developer console instead:
"Cannot yet distinguish credit, debit, and prepaid cards."

BUG=686119

Review-Url: https://codereview.chromium.org/2659083003
Cr-Commit-Position: refs/heads/master@{#446996}
(cherry picked from commit 06a0d2103e3207a176f4b3b98537106854a4ec00)

Review-Url: https://codereview.chromium.org/2662043002 .
Cr-Commit-Position: refs/branch-heads/2987@{#184}
Cr-Branched-From:
ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed:
https://chromium.googlesource.com/chromium/src/+/06a557a4c7c5bfdb7bfd3ad058d6...
==========

[please use gerrit instead, 2017-01-30 20:52:16]

Committed patchset #1 (id:1) manually as
06a557a4c7c5bfdb7bfd3ad058d6f9179464d08b.