GitLab

Feature being launched in cr/326256148

- Enables ntp_features::kRealbox and
  omnibox::kZeroSuggestionsOnNTPRealbox which control the realbox and
  zero-suggest in realbox respectively.
- Enables omnibox::kZeroSuggestionsOnNTP which should've been enabled
  in crrev.com/c/2175138.
- Removes applicable fieldtrial_testing_config.json entries and adjusts
  test expectations.

Change-Id: I1889e65c23e02624b85f0291600b26382e75f828
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2354993Reviewed-by: Mark Pearson <mpearson@chromium.org>
Reviewed-by: Tommy Li <tommycli@chromium.org>
Commit-Queue: Moe Ahmadi <mahmadi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#798392}