Theme change doesn't update URL bar until mouse over

[srirambv]

Description

Theme change doesn't update URL bar until mouse over

Steps to Reproduce

1. Upgrade to 0.68.113
2. Change theme in settings
3. URL bar theme changes only when you mouse over or tab focus is changed

Actual result:

Expected result:

Should automatically change when theme is changed

Reproduces how often:

Easy

Brave version (brave://version info)

Brave	0.68.113 Chromium: 76.0.3809.62 (Official Build) beta (64-bit)
Revision	7b77856b3aa34d72f246d12340fc1ded8b2c0e83-refs/branch-heads/3809@{#798}
OS	Linux

Version/Channel Information:

• Can you reproduce this issue with the current release? No
• Can you reproduce this issue with the beta channel? Yes
• Can you reproduce this issue with the dev channel? Sort of different issue Theme change only updates webUI and not URL bar #5464
• Can you reproduce this issue with the nightly channel? No

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:

[simonhong]

@srirambv I think this only happens with GTK+ theme. This is regression after C76 update.
With Classic theme, this would not be reproduced.
This can be fixed by brave/brave-core#2905 that already in 0.69.x
I think uplifting brave/brave-core#2905 to beta would be good?

[simonhong]

Closed because this was fixed by brave/brave-core#2905

[LaurenWags]

Verified passed with

Brave	0.69.119 Chromium: 76.0.3809.132 (Official Build) beta (64-bit)
Revision	fd1acc410994a7a68ac25bc77513d443f3130860-refs/branch-heads/3809@{#1035}
OS	Mac OS X

• Verified STR from description.
• Encountered hamburger menu unreadable in dark mode on High Sierra (macOS) #5423

Verification passed on

Brave	0.69.121 Chromium: 76.0.3809.132 (Official Build) beta (64-bit)
Revision	fd1acc410994a7a68ac25bc77513d443f3130860-refs/branch-heads/3809@{#1035}
OS	Windows 10 OS Version 1803 (Build 17134.523)

• Verified STR from the description.

Verification passed on

Brave	0.69.121 Chromium: 76.0.3809.132 (Official Build) beta (64-bit)
Revision	fd1acc410994a7a68ac25bc77513d443f3130860-refs/branch-heads/3809@{#1035}
OS	Ubuntu 18.04 LTS

• Verified STR from the description.