Installing a theme adds a blob on new tab button

[srirambv]

Description

Installing a theme adds a blob on new tab button

Steps to Reproduce

1. Upgrade to 0.55.1
2. Open Chrome store and add a theme
3. See new tab button get a beauty spot on top

Actual result:

Expected result:

Should not get a beauty spot when a theme is installed

Reproduces how often:

100%

Brave version (about:brave info)

Brave	0.55.1 Chromium: 70.0.3528.4 (Official Build) dev (64-bit)
Revision	1911f781145b803e04f2d0b5b1a0146ae69fcbdc-refs/branch-heads/3528@{#9}
OS	Windows / Linux

Reproducible on current release:

No

Website problems only:

• Does the issue resolve itself when disabling Brave Shields?
• Is the issue reproducible on the latest version of Chrome?

Additional Information

cc: @LaurenWags @kjozwiak to verify on mac for same behaviour

[kjozwiak]

Talked to @srirambv about this earlier today. It seems to be happening on my Win 7 & Win 8 VM's that are using the default themes. The VM's that I created are basically using the same theme that was enabled when the OS was installed. I didn't change any settings/themes etc.. The VM's are updated, but are using all the default settings and not themes were installed/selected. Examples:

• Windows 7:

• Windows 8:

[GeetaSarvadnya]

Verified the issue on Windows 10. Issue is working fine on Default theme as well as on added new theme, now we are not able to see dot on + tab on version1.55.5
@kjozwiak @srirambv Issue needs to be verified on Win 7 and Win 8 with default theme and new theme.

[btlechowski]

Verification passed on

Brave	0.55.5 Chromium: 70.0.3538.16 (Official Build) dev (64-bit)
Revision	16ed95b41bb05e565b11fb66ac33c660b721f778-refs/branch-heads/3538@{#306}
OS	Windows 7

[kjozwiak]

Looks like it's also resolved on my VM's where I used to see the beauty mark while using the default themes of each OS as mentioned in #983 (comment). Used the following build for verification:

Brave	0.55.6 Chromium: 70.0.3538.16 (Official Build) dev (64-bit)
Revision	16ed95b41bb05e565b11fb66ac33c660b721f778-refs/branch-heads/3538@{#306}

Windows 10 x64 VM using default theme - PASSED

Windows 8.1 x64 VM using default theme - PASSED

Windows 7 x64 VM using default theme - PASSED