users are prompted to Sign into Brave after saving credit card info

[LaurenWags]

Description

On C79 builds users are being asked to 'Sign into Brave' after saving credit card info. Similar to #1363.

On C78 builds this does not occur.

Steps to Reproduce

1. Navigate to a site such as https://mqi.ie/donate/
2. Enter information and submit
3. Save Credit Card info when prompted from URL bar

Actual result:

This should not appear after saving credit card info:

And when you click on the credit card icon in the URL Bar:

Expected result:

No prompt to sign in to Brave after saving CC info.

When you click on credit card icon in URL bar, there shouldn't be a message at the bottom of the popup asking you to sign in:

This is how this works on 1.0.1 C78:

Reproduces how often:

easily

Brave version (brave://version info)

Brave	1.1.18 Chromium: 79.0.3945.56 (Official Build) (64-bit)
Revision	73cc6bf591f792b99f8fc7cdfb8addedbd084bf8-refs/branch-heads/3945@{#788}
OS	macOS Version 10.13.6 (Build 17G5019)

Version/Channel Information:

• Can you reproduce this issue with the current release? no, not with 1.0.1
• Can you reproduce this issue with the beta channel? unsure
• Can you reproduce this issue with the dev channel? unsure
• Can you reproduce this issue with the nightly channel? yes, reported by @AndriusA

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? n/a
• Does the issue resolve itself when disabling Brave Rewards? n/a
• Is the issue reproducible on the latest version of Chrome? yes

Miscellaneous Information:

Originally reported by @AndriusA on Nightly.

I also checked passwords, saving passwords on 1.1.18 does not prompt you to sign into Brave after saving them.

cc @mkarolin @bsclifton @rebron @brave/legacy_qa

[LaurenWags]

Adding 1.1.x milestone as this is likely a C79 regression we want resolved before releasing.

[bsclifton]

I believe this is a bug upstream; I filed https://bugs.chromium.org/p/chromium/issues/detail?id=1031307

Looking at an easy fix for us 👍

[kjozwiak]

Verification PASSED on macOS 10.15.1 x64 using the following build:

Brave	1.1.19 Chromium: 79.0.3945.70 (Official Build) (64-bit)
Revision	65868db27916cebde51fc2465c9b34761e6383e2-refs/branch-heads/3945@{#869}
OS	macOS Version 10.15.1 (Build 19B88)

• ensured that saving CC info via https://dump-truck.appspot.com/usecase-address_and_cc_on_same_page/address_and_cc.html doesn't display the Sign in to Brave text.
• ensured that clicking on X dismisses the modal but is still available via the URL
• ensured that clicking on
• ensured CC info isn't being saved under brave://settings/payments when selecting No Thanks
• ensured CC info is being saved correctly under brave://settings/payments when selecting Save and ensuring a Card Saved message is being displayed in the URL
• ensured Manage addresses correctly opens chrome://settings/addresses
• ensured Manage payment methods correctly opens chrome://settings/payments

Example of notification/modal without Sign in to Brave being displayed:

Verification passed on

Brave	1.1.19 Chromium: 79.0.3945.70 (Official Build) (64-bit)
Revision	65868db27916cebde51fc2465c9b34761e6383e2-refs/branch-heads/3945@{#869}
OS	Ubuntu 18.04 LTS

Verified test plan from brave/brave-core#4151

Verification passed on

Brave	1.1.19 Chromium: 79.0.3945.70 (Official Build) (64-bit)
Revision	65868db27916cebde51fc2465c9b34761e6383e2-refs/branch-heads/3945@{#869}
OS	Windows 7 Service Pack 1 (Build 7601.24530)

Verified test plan from brave/brave-core#4151