Back button on FTX is always shown

[srirambv]

Description

Back button on FTX is always shown

Steps to Reproduce

1. Install 1.26.22 nightly build
2. Open Futures market on FTX widget
3. Background the widget, back button is still shown all the time

Actual result:

Expected result:

Back button on the widget should only be shown when the widget is in foreground

Reproduces how often:

Easy

Brave version (brave://version info)

Brave	1.26.22 Chromium: 91.0.4472.57 (Official Build) nightly (64-bit)
Revision	e3443317fa07f1e9997e4a9c738eddfefc3c0292-refs/branch-heads/4472_54@{#6}
OS	Linux

Version/Channel Information:

• Can you reproduce this issue with the current release? NA
• Can you reproduce this issue with the beta channel? NA
• Can you reproduce this issue with the nightly channel? Yes

Other Additional Information:

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

Miscellaneous Information:

cc: @rebron @petemill @simonhong

[petemill]

Hmm I think the back button with some space, like FTX is probably best. The solution here is probably to hide the back button when the widget is not in the foreground since it won't do anything.

[srirambv]

Verification passed on

Brave	1.26.63 Chromium: 91.0.4472.106 (Official Build) (x86_64)
Revision	574f7b38e4e7244c92c4675e902e8f8e3d299ea7-refs/branch-heads/4472@{#1477}
OS	macOS Version 10.15.7 (Build 19H114)

• Verified back button is only shown when widget is in focus

15941-mac.mov

---

Verification passed on

Brave	1.26.63 Chromium: 91.0.4472.106 (Official Build) (64-bit)
Revision	574f7b38e4e7244c92c4675e902e8f8e3d299ea7-refs/branch-heads/4472@{#1477}
OS	Linux

• Verified back button is only shown when widget is in focus

15941-Linux.mov

---

Verification passed on

Brave	1.26.63 Chromium: 91.0.4472.106 (Official Build) (64-bit)
Revision	574f7b38e4e7244c92c4675e902e8f8e3d299ea7-refs/branch-heads/4472@{#1477}
OS	Windows 10 OS Version 2009 (Build 19042.1052)

• Verified back button is only shown when widget is in focus

15941-Win.mov