Use safe_browsing_mode=2 for Android (Uplift for 1.7.x)

[bbondy]

Uplift for PR #8664

Fix #8381

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]

Looks like most of the failures where due to lint failing. However, this is a known issue and will be resolved via #8684.

Android failing lint --> https://ci.brave.com/job/brave-browser-build-pr/job/PR-8681/1/execution/node/237/log/
iOS failing lint --> https://ci.brave.com/job/brave-browser-build-pr/job/PR-8681/1/execution/node/421/log/
Linux failing lint --> https://ci.brave.com/job/brave-browser-build-pr/job/PR-8681/1/execution/node/204/log/
macOS failing lint --> https://ci.brave.com/job/brave-browser-build-pr/job/PR-8681/1/execution/node/204/log/

[kjozwiak]

Uplift into 1.7.x approved after deliberating with @brave/uplift-approvers. As per #8681 (comment), the only failure was lint on all platforms due to a known issue. Please make sure that all the correct labels are being used and the associated issue is moved into the correct milestone.