13778: Avoid crash while getting an accessibility string. (uplift to 1.19.x)

[brave-builds]

Uplift of #7708
Fix brave/brave-browser#13778

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• 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 Win x64 using SKIP_INIT due to dist failing because of a certificate issue as per https://ci.brave.com/job/pr-brave-browser-pr7708_ie_accessibility_2_1.19.x-windows/1/execution/node/226/log/.

08:30:25  Generating code
08:30:25  Finished generating code
08:30:25  Copy("scons-out\opt-win\obj\google_update\BraveUpdate_signed.exe", "scons-out\opt-win\obj\google_update\BraveUpdate_unsigned.exe")
08:30:25  Chmod("scons-out\opt-win\obj\google_update\BraveUpdate_signed.exe", 0755)
08:30:25  python C:\19.x\src\brave\vendor\omaha\omaha/tools/retry.py 10 5 ""C:\Program Files (x86)\Windows Kits\10\bin\10.0.18362.0\\x86"/signtool.exe" sign /v /f "C:\jenkins\digicert.pfx" /p "****" /t "http://timestamp.digicert.com" "scons-out\opt-win\obj\google_update\BraveUpdate_signed.exe"
08:30:25  SignTool Error: No certificates were found that met all the given criteria.

[kjozwiak]

Win x64 failed dist due to a certificate issue which is a known failure as per https://ci.brave.com/job/pr-brave-browser-pr7708_ie_accessibility_2_1.19.x-windows/1/execution/node/226/log/. However, as per @mihaiplesa, this doesn't block uplift.

08:30:25  Generating code
08:30:25  Finished generating code
08:30:25  Copy("scons-out\opt-win\obj\google_update\BraveUpdate_signed.exe", "scons-out\opt-win\obj\google_update\BraveUpdate_unsigned.exe")
08:30:25  Chmod("scons-out\opt-win\obj\google_update\BraveUpdate_signed.exe", 0755)
08:30:25  python C:\19.x\src\brave\vendor\omaha\omaha/tools/retry.py 10 5 ""C:\Program Files (x86)\Windows Kits\10\bin\10.0.18362.0\\x86"/signtool.exe" sign /v /f "C:\jenkins\digicert.pfx" /p "****" /t "http://timestamp.digicert.com" "scons-out\opt-win\obj\google_update\BraveUpdate_signed.exe"
08:30:25  SignTool Error: No certificates were found that met all the given criteria.

[kjozwiak]

Uplift into 1.19.x approved after deliberating with @brave/uplift-approvers. QA has verified the PR on Nightly as per #7708 (comment) and created brave/brave-browser#13837 as a follow up.