[iOS] Add Omnibox NTP ZPS suggestion flag

This flag already exists and is used for this purpose on Android and
Desktop. This adds the flag to iOS.

Bug: 1048193
Change-Id: Ia50dbcc3994cc74592f821a3fbc6c3f74ff785a5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2056776
Reviewed-by: Ender <[email protected]>
Reviewed-by: Stepan Khapugin <[email protected]>
Commit-Queue: Robbie Gibson <[email protected]>
Cr-Commit-Position: refs/heads/master@{#742553}
diff --git a/ios/chrome/browser/flags/about_flags.mm b/ios/chrome/browser/flags/about_flags.mm
index 831a5cae..2dc6838 100644
--- a/ios/chrome/browser/flags/about_flags.mm
+++ b/ios/chrome/browser/flags/about_flags.mm
@@ -189,6 +189,16 @@
          base::size(kOmniboxOnDeviceHeadSuggestDelay350MsAndRelevance1000),
          nullptr}};
 
+const FeatureEntry::FeatureParam kOmniboxNTPZPSRemote[] = {
+    {"ZeroSuggestVariant:1:*", "RemoteNoUrl"},
+    {"ZeroSuggestVariant:7:*", "RemoteNoUrl"},
+    {"ZeroSuggestVariant:8:*", "RemoteNoUrl"}};
+
+const FeatureEntry::FeatureVariation kOmniboxOnFocusSuggestionsVariations[] = {
+    {"ZPS on NTP: Remote History", kOmniboxNTPZPSRemote,
+     base::size(kOmniboxNTPZPSRemote), "t3316653" /* variation_id */},
+};
+
 const FeatureEntry::FeatureParam kOmniboxUIMaxAutocompleteMatches3[] = {
     {OmniboxFieldTrial::kUIMaxAutocompleteMatchesParam, "3"}};
 const FeatureEntry::FeatureParam kOmniboxUIMaxAutocompleteMatches4[] = {
@@ -383,6 +393,12 @@
          omnibox::kOnDeviceHeadProvider,
          kOmniboxOnDeviceHeadSuggestExperimentVariations,
          "OmniboxOnDeviceHeadSuggestIOS")},
+    {"omnibox-on-focus-suggestions",
+     flag_descriptions::kOmniboxOnFocusSuggestionsName,
+     flag_descriptions::kOmniboxOnFocusSuggestionsDescription, flags_ui::kOsIos,
+     FEATURE_WITH_PARAMS_VALUE_TYPE(omnibox::kOnFocusSuggestions,
+                                    kOmniboxOnFocusSuggestionsVariations,
+                                    "OmniboxBundledExperimentV1")},
     {"omnibox-ui-max-autocomplete-matches",
      flag_descriptions::kOmniboxUIMaxAutocompleteMatchesName,
      flag_descriptions::kOmniboxUIMaxAutocompleteMatchesDescription,