Fixes Brave Rewards service is associated to Tor Profiles

[tmancey]

Resolves brave/brave-browser#11223
Resolves brave/brave-browser#11042

Submitter Checklist:

• Submitted a ticket for my issue if one did not already exist.
• Used Github auto-closing keywords in the commit message.
• Added/updated tests for this change (for new code or code which already has tests).
• Verified that these changes build without errors on
  • Android
  • iOS
  • Linux
  • macOS
  • Windows
• Verified that these changes pass automated tests (unit, browser, security tests) on
  • iOS
  • Linux
  • macOS
  • Windows
• Verified that all lint errors/warnings are resolved (npm run lint)
• Ran git rebase master (if needed).
• Ran git rebase -i to squash commits (if needed).
• Tagged reviewers and labelled the pull request as needed.
• Request a security/privacy review as needed.
• Add appropriate QA labels (QA/Yes or QA/No) to include the closed issue in milestone
• Public documentation has been updated as necessary. For instance:
  • https://github.com/brave/brave-browser/wiki/Deviations-from-Chromium-(features-we-disable-or-remove)
  • https://github.com/brave/brave-browser/wiki/Proxy-redirected-URLs
  • https://github.com/brave/brave-browser/wiki/Fingerprinting-Protections
  • https://github.com/brave/brave-browser/wiki/Brave%E2%80%99s-Use-of-Referral-Codes
  • https://github.com/brave/brave-browser/wiki/Custom-Headers
  • https://github.com/brave/brave-browser/wiki/Web-compatibility-issues-with-tracking-protection
  • https://github.com/brave/brave-browser/wiki/QA-Guide

Test Plan:

• Confirm ads_service, rewards_service and any other related rewards files are not located in ~/Library/Application Support/BraveSoftware/Brave-Browser/Default/session_profiles/Tor Profile

Reviewer Checklist:

• New files have MPL-2.0 license header.
• Request a security/privacy review as needed.
• Adequate test coverage exists to prevent regressions
• Verify test plan is specified in PR before merging to source

After-merge Checklist:

• The associated issue milestone is set to the smallest version that the
  changes has landed on.
• All relevant documentation has been updated.

[tmancey]

CI failed for Windows, rebuilding Windows

[tmancey]

CI failed for Windows, restarting Windows

[tmancey]

@yrliou Could you please review the changes for this temporary fix, thanks

[kjozwiak]

Verification PASSED on macOS 10.15.6 x64 using the following build:

Brave | 1.16.4 Chromium: 85.0.4183.102 (Official Build) nightly (64-bit)
-- | --
Revision | ffe848af6a5df4fa127e2929331116b7f9f1cb30-refs/branch-heads/4183@{#1770}
OS | macOS Version 10.15.6 (Build 19G73)

Test Case 1 - running through STR/Cases outlined via #6418 (comment)

• launched Nightly via the following:

--args --enable-logging=stderr --vmodule="*/bat-native-ads/*"=6,"*/brave_ads/*"=6,"*/brave_user_model/*"=6,"*/bat_ads/*"=6,"*/bat-native-ledger/*"=6,"*/brave_rewards/*"=6 --rewards=staging=true --brave-ads-staging

• enabled rewards
• claimed UGP grant
• viewed ad (ensured ad notification appeared and was counted via brave://rewards)
• opened brave://rewards-internals/ and clicked on Logs --> Download full log (nothing should happen)
• logged into a KYC'd staging account via Uphold
• tipped both https://kjozwiakstaging.github.io & https://laurenwags.github.io

Once the above was done, created a new Tor Window and ensured that the following folders/files weren't being created/appeared within session_profiles/Tor Profile:

* ~/Library/Application Support/BraveSoftware/Brave-Browser-Nightly/Default/session_profiles/Tor Profile/ads_service
* ~/Library/Application Support/BraveSoftware/Brave-Browser-Nightly/Default/session_profiles/Tor Profile/rewards_service
* ~/Library/Application Support/BraveSoftware/Brave-Browser-Nightly/Default/session_profiles/Tor Profile/Rewards.log
* ~/Library/Application Support/BraveSoftware/Brave-Browser-Nightly/Default/session_profiles/Tor Profile/publisher_info_db

Ensured that no other files that might look ads/rewards related are appearing in session_profiles/Tor Profile/ads_service. The following still appears but seems to be empty/doesn't have any information logged which will be addressed in a separate issue.

~/Library/Application Support/BraveSoftware/Brave-Browser-Nightly/Default/session_profiles/Tor Profile/heavy_ad_intervention_opt_out.db

Test Case 2 - running through STR/Cases outlined via brave/brave-browser#11042 (comment)

Went through the STR/Cases outlined via brave/brave-browser#11042 (comment) and ensured that I didn't received random ads from other regions nor two ads at the same time. I went through the case ~20 times and couldn't reproduce.

[tmancey]

@kjozwiak ~/Library/Application Support/BraveSoftware/Brave-Browser-Nightly/Default/session_profiles/Tor Profile/heavy_ad_intervention_opt_out.db is not related to brave rewards, thanks