Theme change only updates webUI and not URL bar

[srirambv]

Description

Theme change only updates webUI and not URL bar

Steps to Reproduce

1. Upgrade to 0.69.94
2. Toggle theme from dark to light
3. Only webui theme changes, URL bar remains dark

Actual result:

Expected result:

Should change both webui and URL bar theme accordingly

Reproduces how often:

Easy

Brave version (brave://version info)

Brave	0.69.94 Chromium: 76.0.3809.62 (Official Build) dev (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? Theme change doesn't update URL bar until mouse over #5462
• Can you reproduce this issue with the dev channel? Yes
• 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:

Similar to #5462

[simonhong]

@srirambv When user choose GTK+ theme instead of Classic, gtk theme is used instead of brave theme by brave/brave-core#2905.
So, native ui such as url bar will not be changed by changing brave theme option.
With Classic theme, brave theme change will change webui & native ui both.

[rebron]

@simonhong This doesn't sound like a bug. Working as expected?

[simonhong]

@rebron sorry for late reply. yes, this is expected behavior.

[srirambv]

@simonhong should we close if this is the expected behaviour? (Its still weird that you have to mouse over for the change to happen and not automatic)

[simonhong]

@srirambv This can be closed. After changing theme option, native ui(ex, omnibox) doesn't change at all. I can't see ui change during the mouse hover?