Fix forward expected result in HistorySearchVisibilityWithXNNPACK

ModelExecutionFeaturesControllerTest.HistorySearchVisibilityWithXNNPACK
has been consistently failing on:
https://ci.chromium.org/ui/p/chrome/builders/ci/android-arm-tests/33857/overview

This is likely due to a refactor a couple CLs back that accidentally
passed the wrong expected SettingsVisibilityResult: https://chromium-review.googlesource.com/c/chromium/src/+/6920589

Change-Id: I21dc136108dcbd2e67bfa5c1919566310432fcea
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6935387
Reviewed-by: Filipa Senra <fsenra@google.com>
Commit-Queue: Zaina Al-Mashni <zalmashni@google.com>
Owners-Override: Zaina Al-Mashni <zalmashni@google.com>
Cr-Commit-Position: refs/heads/main@{#1513667}