Ad notifications are not shown on Windows until a non ad notification has been authorized

[tmancey]

Description

Ad notifications are not shown until a non-ad notification has been authorized by the user, i.e. visiting http://bennish.net/web-notifications.html

Steps to Reproduce

1. View an ad notification (after a fresh install, before notifications have been authorized)

Actual result:

Ad notification is not shown

Expected result:

User should be requested to authorize notifications (if not already enabled in the Windows notification settings area) and an ad notification should be shown

Reproduces how often:

Easily reproduced

Brave version (brave://version info)

Version/Channel Information:

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

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:

Ad notifications are not requesting authorization.

Based upon diagnostic information from the Windows APIs, notifications are not enabled due to failure when initializing, likely because Brave Browser notification settings are missing from the Windows settings area.

[GeetaSarvadnya]

Verification is in progress

Brave	1.7.92 Chromium: 80.0.3987.163 (Official Build) (64-bit)
Revision	e7fbe071abe9328cdce4ffedac9822435fbd3656-refs/branch-heads/3987@{#1037}
OS	Windows 10 OS Version 1803 (Build 17134.1006)

• Verified the test plan from Fixes ad notifications are not shown on Windows until a non ad notification has been authorized brave-core#5131

Clean profile:

• Uninstalled existing profile and installed 1.7.x and confirmed that ads are shown and Estimated pending rewards and Ad notifications received this month stats are shown as expected
  
• Verified that ads history is shown as expected for viewed ads
  
• Verified that after installing 1.7.x. By default Brave app is shown in Notification & actions settings and status is Enabled by default
• Verified that ads are not shown when Brave app status is disabled in Notification & action center
• Verified that Brave app isn't shown in Notification & action center after uninstalling Brave app

Upgraded profile:

• Verified that ads are shown in upgraded profile and Estimated pending rewards and Ad notifications received this month stats are shown as expected
• Verified that ads history is shown as expected for viewed ads
• Verified that ads are not shown when Brave app status is disabled in Notification & action center