brave stalling/beach balling when auto-completing URLs via tab

Description

Sometimes when you quickly click on the URL bar and try auto-completing a URL via the TAB, the cursor will start beach balling and Brave will stall for a few seconds until the URL is completed.

I’ve ran into this a few times recently and it happens at least ~3-4 times a day.

Steps to Reproduce

I don’t really have STR but it usually happens when Brave has been idling for a bit of time and you quickly click on the URL bar, start typing something and press TAB to auto-complete.

Actual result:

Brave stalls and starts beach balling for a few seconds until the URL auto-completes.

Expected result:

Brave shouldn’t be stalling nor beach balling when auto-completing URLs.

Reproduces how often:

As mentioned above, it happens a few times a day but it’s not easy to reproduce as it doesn’t always happen. I seem to reproduce when I try auto-completing a URL after Brave has been idle for ~20min.

Brave version (brave://version info)

Brave	1.5.22 Chromium: 79.0.3945.117 (Official Build) nightly (64-bit)
Revision	04f0a055010adab4484f7497fbfdbf312c307f1d-refs/branch-heads/3945@{#1019}
OS	macOS Version 10.15.2 (Build 19C57)

Version/Channel Information:

• Can you reproduce this issue with the current release? Yes, reproduced
• Can you reproduce this issue with the beta channel? Not 100% sure
• Can you reproduce this issue with the dev channel? Not 100% sure
• Can you reproduce this issue with the nightly channel? Yes, reproduced

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? N/A

Miscellaneous Information:

CCing @brave/legacy_qa @rebron @bsclifton @snyderp

[bmatzner]

Same here, haven‘t seen the behavior in a couple of days. Thanks so much!

[pes10k]

@rebron i haven’t seen this in a while 👍