Upgrade from Chromium 80.0.3987.122 to Chromium 80.0.3987.132 (1.5.x).

[mkarolin]

Fixes brave/brave-browser#8499
Related PR: brave/brave-browser#8521
Uplift from: #4817

Approved, please ensure that before merging:

• You have checked CI and the builds, lint, and tests all pass or are not related to your PR.
• You have tested your change on Nightly.
• The PR milestones match the branch they are landing to.

After you merge:

• The associated issue milestone is set to the smallest version that the changes is landed on.

[kjozwiak]

Restarting macOS due to build failing as per https://ci.brave.com/job/brave-browser-build-pr/job/PR-8521/2/execution/node/720/log/.

03:01:02  ERROR at //build/timestamp.gni:31:19: Script returned non-zero exit code.
03:01:02  build_timestamp = exec_script(compute_build_timestamp,
03:01:02                    ^----------
03:01:02  Current dir: /Users/jenkins/jenkins/workspace/brave-browser-build-pr_PR-8521/src/out/Release/
03:01:02  Command: python /Users/jenkins/jenkins/workspace/brave-browser-build-pr_PR-8521/src/build/compute_build_timestamp.py official
03:01:02  Returned 1.
03:01:02  stderr:
03:01:02  
03:01:02  Traceback (most recent call last):
03:01:02    File "/Users/jenkins/jenkins/workspace/brave-browser-build-pr_PR-8521/src/build/compute_build_timestamp.py", line 127, in <module>
03:01:02      sys.exit(main())
03:01:02    File "/Users/jenkins/jenkins/workspace/brave-browser-build-pr_PR-8521/src/build/compute_build_timestamp.py", line 113, in main
03:01:02      last_commit_timestamp = int(open(lastchange_file).read())
03:01:02  IOError: [Errno 2] No such file or directory: '/Users/jenkins/jenkins/workspace/brave-browser-build-pr_PR-8521/src/build/util/LASTCHANGE.committime'
03:01:02  
03:01:02  See //base/BUILD.gn:34:1: whence it was imported.
03:01:02  import("//build/timestamp.gni")
03:01:02  ^-----------------------------
03:01:02  See //BUILD.gn:70:5: which caused the file to be included.
03:01:02      "//base:base_perftests",
03:01:02      ^----------------------

[mkarolin]

Passed MacOS CI.

[kjozwiak]

Uplift into 1.5.x approved after deliberating with @brave/uplift-approvers. Both CI/Jenkins and CI/Travis passed without any failures after restarting macOS. Please make sure that all the correct labels are being used and the associated issue is moved into the correct milestone.