hovering over a bookmark bar item shows corners as rounded

[LaurenWags]

Description

On C79 builds when you hover over a bookmark bar item the highlighted item is rounded instead of more square. C78 builds show the hover correctly.

Steps to Reproduce

1. Add bookmark/folder to bookmarks bar.
2. Hover over item.

Actual result:

See that highlighted item corners are rounded:

Expected result:

Corners should be more square

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)

Brave	1.4.3 Chromium: 79.0.3945.56 (Official Build) nightly (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? 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 with 1.4.3

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:

cc @bsclifton @rebron @brave/legacy_qa

[LaurenWags]

Does not reproduce on 1.1.17 (last C78 1.1.x build):

[LaurenWags]

@bsclifton noticed that the separator isn't always shown and that drag/drop of bookmarks into folders is difficult. When checking this issue we should retest this part as well.

[GeetaSarvadnya]

Reproduced in Windows 10 x64 - 1.1.18

[LaurenWags]

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

[kjozwiak]

@bsclifton @rebron are we planning on getting this into the next release? It looks like brave/brave-core#4135 has been completed/reviewed. We should get this merged into Nightly/QA'd and get the uplift PR's going if this is something we want out in 1.1.x.

[bsclifton]

Waiting on code review from @bridiver brave/brave-core#4135

[LaurenWags]

Verified passed with

Brave	1.1.20 Chromium: 79.0.3945.74 (Official Build) (64-bit)
Revision	99b6d241cf84f7fa7434ae8a59f9e74eb1464280-refs/branch-heads/3945@{#888}
OS	macOS Version 10.13.6 (Build 17G5019)

• Verified STR from description

* Verified able to drag and drop items on bookmark bar without issue.

Verification passed on

Brave	1.1.20 Chromium: 79.0.3945.74 (Official Build) (64-bit)
Revision	99b6d241cf84f7fa7434ae8a59f9e74eb1464280-refs/branch-heads/3945@{#888}
OS	Ubuntu 18.04 LTS

Verification passed on

Brave	1.1.20 Chromium: 79.0.3945.74 (Official Build) (64-bit)
Revision	99b6d241cf84f7fa7434ae8a59f9e74eb1464280-refs/branch-heads/3945@{#888}
OS	Windows 10 OS Version 1803 (Build 17134.228)