Followon to https://chromium-review.googlesource.com/c/chromium/src/+/801350 .

BUG=none
TEST=none

Change-Id: If31621b94082b463ec2d90f7f8d59f11e6052bed
Reviewed-on: https://chromium-review.googlesource.com/802975Reviewed-by: Kevin Bailey <krb@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#521054}

chrome/browser/autocomplete/autocomplete_classifier_factory.cc

@@ -41,9 +41,9 @@ std::unique_ptr<KeyedService> AutocompleteClassifierFactory::BuildInstanceFor(
   Profile* profile = static_cast<Profile*>(context);
   auto provider_client =
       base::MakeUnique<ChromeAutocompleteProviderClient>(profile);
-  auto controller = base::WrapUnique(new AutocompleteController(
-      std::move(provider_client), NULL,
-      AutocompleteClassifier::DefaultOmniboxProviders()));
+  auto controller = base::MakeUnique<AutocompleteController>(
+      std::move(provider_client), nullptr,
+      AutocompleteClassifier::DefaultOmniboxProviders());
   return base::MakeUnique<AutocompleteClassifier>(
       std::move(controller),
       base::MakeUnique<ChromeAutocompleteSchemeClassifier>(profile));