Upgrade from Chromium 80.0.3987.132 to Chromium 80.0.3987.149 (1.7.x).

[mkarolin]

Fixes #8728
Related PR: brave/brave-core#4981

Uplift from: #8729

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
• Ran git rebase master (if needed).
• Ran git rebase -i to squash commits (if needed).
• Tagged reviewers and labelled the pull request as needed.
• Requested a security/privacy review as needed.
• If adding a new directory with NPM packages, ensure this directory is
  added to scripts/audit.js.
• 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-Protection-Mode
  • 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

Test Plan:

Reviewer Checklist:

• New files have MPL-2.0 license header.
• Request a security/privacy review as needed.
• Adequate test coverage exists to prevent regressions.

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.

[kjozwiak]

Looks like the only failure was on macOS due to Publish xUnit test failing for test-unit and test-browser which is a known intermittent issue that's not related to this PR hence not blocking uplift.

• Publish xUnit test failing test-unit --> https://ci.brave.com/job/brave-browser-build-pr/job/PR-8744/2/execution/node/599/log/
• Publish xUnit test failing test-browser --> https://ci.brave.com/job/brave-browser-build-pr/job/PR-8744/2/execution/node/617/log/

[kjozwiak]

Uplift into 1.7.x approved after deliberating with @brave/uplift-approvers. As per #8744 (comment), all the failures are known issues and not blocking. Please make sure that all the correct labels are being used and the associated issue is moved into the correct milestone.