From e739af6e5f28c1bebef23f6469c08c6536e87cba Mon Sep 17 00:00:00 2001
From: Jinwoo Lee <blackbox0209@gmail.com>
Date: Sat, 15 Nov 2025 21:46:30 +0900
Subject: [PATCH 1/3] feat: add autocomplete options for search suggestions

---
 .../settings/add-autocomplete-options.patch   | 258 ++++++++++++++++++
 patches/series                                |   1 +
 2 files changed, 259 insertions(+)
 create mode 100644 patches/helium/settings/add-autocomplete-options.patch

diff --git a/patches/helium/settings/add-autocomplete-options.patch b/patches/helium/settings/add-autocomplete-options.patch
new file mode 100644
index 000000000..bd635740b
--- /dev/null
+++ b/patches/helium/settings/add-autocomplete-options.patch
@@ -0,0 +1,258 @@
+--- a/chrome/app/settings_strings.grdp
++++ b/chrome/app/settings_strings.grdp
+@@ -2245,6 +2245,15 @@
+   <message name="IDS_SETTINGS_SEARCH_MANAGE_SEARCH_ENGINES_EXPLANATION" desc="Explanation for the Manage Search Engines button.">
+     Create shortcuts for searching sites and manage your search engine
+   </message>
++  <message name="IDS_SEARCH_AUTOCOMPLETE_TITLE" desc="Title for the search autocomplete options.">
++    Search autocomplete suggestions
++  </message>
++  <message name="IDS_SEARCH_AUTOCOMPLETE_SHOW_HISTORY" desc="Label for the option to show search autocomplete suggestions from browsing history.">
++    Show browsing history
++  </message>
++  <message name="IDS_SEARCH_AUTOCOMPLETE_SHOW_BOOKMARK" desc="Label for the option to show search autocomplete suggestions from bookmarks.">
++    Show bookmarks
++  </message>
+ 
+   <!-- Search Engines Page -->
+   <message name="IDS_SETTINGS_SEARCH_ENGINES" desc="Name of the settings page which manages search engines.">
+--- a/chrome/browser/resources/settings/search_page/search_page.html
++++ b/chrome/browser/resources/settings/search_page/search_page.html
+@@ -23,6 +23,14 @@
+     margin-inline-end: auto;
+   }
+ 
++  .search-autocomplete-toggles {
++    padding-inline-end: 0;
++  }
++
++  .search-autocomplete-toggles settings-toggle-button {
++    padding-inline-start: 0;
++  }
++
+   site-favicon {
+     --site-favicon-border-radius: 4px;
+     --site-favicon-height: var(--favicon-size);
+@@ -82,6 +90,21 @@
+         sub-label="$i18n{searchSuggestPrefDesc}">
+     </settings-toggle-button>
+ 
++    <!-- Autocomplete options -->
++    <div class="cr-row">
++      $i18n{searchAutocompleteTitle}
++    </div>
++    <div class="list-frame search-autocomplete-toggles">
++      <settings-toggle-button id="searchAutocompleteHistoryToggle"
++          pref="{{prefs.helium.omnibox.autocomplete.history_enabled}}"
++          label="$i18n{showSearchAutocompleteHistory}">
++      </settings-toggle-button>
++      <settings-toggle-button id="searchAutocompleteBookmarkToggle" class="hr"
++          pref="{{prefs.helium.omnibox.autocomplete.bookmark_enabled}}"
++          label="$i18n{showSearchAutocompleteBookmark}">
++      </settings-toggle-button>
++    </div>
++
+     <template is="dom-if"
+         if="[[prefs.default_search_provider_data.template_url_data.extensionId]]">
+       <div class="cr-row continuation">
+--- a/chrome/browser/ui/webui/settings/settings_localized_strings_provider.cc
++++ b/chrome/browser/ui/webui/settings/settings_localized_strings_provider.cc
+@@ -2516,6 +2516,11 @@ void AddSearchStrings(content::WebUIData
+       {"searchEnginesCancelButton", IDS_CANCEL},
+       {"searchEnginesConfirmationToastLabel",
+        IDS_SEARCH_ENGINE_CHOICE_SETTINGS_CONFIRMATION_TOAST_LABEL},
++      {"searchAutocompleteTitle", IDS_SEARCH_AUTOCOMPLETE_TITLE},
++      {"showSearchAutocompleteHistory",
++       IDS_SEARCH_AUTOCOMPLETE_SHOW_HISTORY},
++      {"showSearchAutocompleteBookmark",
++       IDS_SEARCH_AUTOCOMPLETE_SHOW_BOOKMARK},
+   };
+   html_source->AddLocalizedStrings(kLocalizedStrings);
+   html_source->AddString("searchExplanationLearnMoreURL",
+--- a/components/omnibox/browser/omnibox_pref_names.h
++++ b/components/omnibox/browser/omnibox_pref_names.h
+@@ -69,6 +69,14 @@ inline constexpr char kShowGoogleLensSho
+ // omnibox.
+ inline constexpr char kShowSearchTools[] = "omnibox.show_search_tools";
+ 
++// Booleans that specify whether history suggestions are shown in the omnibox.
++inline constexpr char kAutocompleteHistoryEnabled[] =
++    "helium.omnibox.autocomplete.history_enabled";
++
++// Booleans that specify whether bookmark suggestions are shown in the omnibox.
++inline constexpr char kAutocompleteBookmarkEnabled[] =
++    "helium.omnibox.autocomplete.bookmark_enabled";
++
+ // How many times the various IPH suggestions were shown.
+ inline constexpr char kShownCountEnterpriseSearchAggregatorIph[] =
+     "omnibox.shown_count_enterprise_search_aggregator_iph";
+--- a/components/omnibox/browser/omnibox_prefs.cc
++++ b/components/omnibox/browser/omnibox_prefs.cc
+@@ -29,6 +29,9 @@ void RegisterProfilePrefs(PrefRegistrySi
+   registry->RegisterBooleanPref(
+       kShowSearchTools, true, user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
+ 
++  registry->RegisterBooleanPref(omnibox::kAutocompleteHistoryEnabled, true);
++  registry->RegisterBooleanPref(omnibox::kAutocompleteBookmarkEnabled, true);
++
+   registry->RegisterBooleanPref(omnibox::kDismissedGeminiIph, false);
+   registry->RegisterBooleanPref(
+       omnibox::kDismissedEnterpriseSearchAggregatorIphPrefName, false);
+--- a/chrome/browser/extensions/api/settings_private/prefs_util.cc
++++ b/chrome/browser/extensions/api/settings_private/prefs_util.cc
+@@ -513,6 +513,10 @@ const PrefsUtil::TypedPrefMap& PrefsUtil
+       settings_api::PrefType::kDictionary;
+   (*s_allowlist)[::omnibox::kKeywordSpaceTriggeringEnabled] =
+       settings_api::PrefType::kBoolean;
++  (*s_allowlist)[::omnibox::kAutocompleteHistoryEnabled] =
++      settings_api::PrefType::kBoolean;
++  (*s_allowlist)[::omnibox::kAutocompleteBookmarkEnabled] =
++      settings_api::PrefType::kBoolean;
+ 
+   // Site Settings prefs.
+   (*s_allowlist)[::content_settings::kGeneratedNotificationPref] =
+--- a/components/omnibox/browser/bookmark_provider.cc
++++ b/components/omnibox/browser/bookmark_provider.cc
+@@ -20,6 +20,7 @@
+ #include "components/omnibox/browser/keyword_provider.h"
+ #include "components/omnibox/browser/match_compare.h"
+ #include "components/omnibox/browser/omnibox_field_trial.h"
++#include "components/omnibox/browser/omnibox_prefs.h"
+ #include "components/omnibox/browser/omnibox_triggered_feature_service.h"
+ #include "components/omnibox/browser/scoring_functor.h"
+ #include "components/omnibox/browser/titled_url_match_utils.h"
+@@ -45,6 +46,10 @@ void BookmarkProvider::Start(const Autoc
+   TRACE_EVENT0("omnibox", "BookmarkProvider::Start");
+   matches_.clear();
+ 
++  if (!client_->GetPrefs()->GetBoolean(omnibox::kAutocompleteBookmarkEnabled)) {
++    return;
++  }
++
+   if (input.IsZeroSuggest() || input.text().empty()) {
+     return;
+   }
+--- a/components/omnibox/browser/history_fuzzy_provider.cc
++++ b/components/omnibox/browser/history_fuzzy_provider.cc
+@@ -35,6 +35,7 @@
+ #include "components/omnibox/browser/bookmark_provider.h"
+ #include "components/omnibox/browser/history_quick_provider.h"
+ #include "components/omnibox/browser/omnibox_field_trial.h"
++#include "components/omnibox/browser/omnibox_prefs.h"
+ #include "components/omnibox/browser/omnibox_triggered_feature_service.h"
+ #include "components/url_formatter/elide_url.h"
+ #include "third_party/metrics_proto/omnibox_event.pb.h"
+@@ -496,6 +497,11 @@ void HistoryFuzzyProvider::Start(const A
+                                  bool minimal_changes) {
+   TRACE_EVENT0("omnibox", "HistoryFuzzyProvider::Start");
+   matches_.clear();
++
++  if (!client()->GetPrefs()->GetBoolean(omnibox::kAutocompleteHistoryEnabled)) {
++    return;
++  }
++
+   if (input.IsZeroSuggest() ||
+       input.type() == metrics::OmniboxInputType::EMPTY) {
+     return;
+--- a/components/omnibox/browser/history_quick_provider.cc
++++ b/components/omnibox/browser/history_quick_provider.cc
+@@ -33,6 +33,7 @@
+ #include "components/omnibox/browser/keyword_provider.h"
+ #include "components/omnibox/browser/match_compare.h"
+ #include "components/omnibox/browser/omnibox_field_trial.h"
++#include "components/omnibox/browser/omnibox_prefs.h"
+ #include "components/omnibox/browser/omnibox_triggered_feature_service.h"
+ #include "components/omnibox/browser/url_prefix.h"
+ #include "components/omnibox/common/omnibox_features.h"
+@@ -61,6 +62,11 @@ void HistoryQuickProvider::Start(const A
+                                  bool minimal_changes) {
+   TRACE_EVENT0("omnibox", "HistoryQuickProvider::Start");
+   matches_.clear();
++
++  if (!client()->GetPrefs()->GetBoolean(omnibox::kAutocompleteHistoryEnabled)) {
++    return;
++  }
++
+   if (disabled_ || input.IsZeroSuggest() ||
+       input.type() == metrics::OmniboxInputType::EMPTY) {
+     return;
+--- a/components/omnibox/browser/history_url_provider.cc
++++ b/components/omnibox/browser/history_url_provider.cc
+@@ -39,6 +39,7 @@
+ #include "components/omnibox/browser/in_memory_url_index_types.h"
+ #include "components/omnibox/browser/keyword_provider.h"
+ #include "components/omnibox/browser/omnibox_field_trial.h"
++#include "components/omnibox/browser/omnibox_prefs.h"
+ #include "components/omnibox/browser/url_prefix.h"
+ #include "components/omnibox/browser/verbatim_match.h"
+ #include "components/prefs/pref_service.h"
+@@ -429,6 +430,13 @@ void HistoryURLProvider::Start(const Aut
+     return;
+   }
+ 
++  // Unlike other providers, we can't simply stop the search here. The
++  // HistoryURLProvider doesn't only search history, it is also responsible for
++  // navigating to exact urls (i.e. https://example.com/), so we need to disable
++  // **ONLY** history searches. Fortunately, Chromium has a flag for this.
++  search_url_database_ = client()->GetPrefs()->GetBoolean(
++    omnibox::kAutocompleteHistoryEnabled);
++
+   // Remove the keyword from input if we're in keyword mode for a starter pack
+   // engine.
+   const auto [autocomplete_input, starter_pack_engine] =
+--- a/components/omnibox/browser/local_history_zero_suggest_provider.cc
++++ b/components/omnibox/browser/local_history_zero_suggest_provider.cc
+@@ -110,6 +110,11 @@ void LocalHistoryZeroSuggestProvider::St
+                                             bool minimal_changes) {
+   TRACE_EVENT0("omnibox", "LocalHistoryZeroSuggestProvider::Start");
+   Stop(AutocompleteStopReason::kClobbered);
++
++  if (!client_->GetPrefs()->GetBoolean(omnibox::kAutocompleteHistoryEnabled)) {
++    return;
++  }
++
+   if (!AllowLocalHistoryZeroSuggestSuggestions(client_, input)) {
+     return;
+   }
+--- a/components/omnibox/browser/search_provider.cc
++++ b/components/omnibox/browser/search_provider.cc
+@@ -44,6 +44,7 @@
+ #include "components/omnibox/browser/autocomplete_result.h"
+ #include "components/omnibox/browser/keyword_provider.h"
+ #include "components/omnibox/browser/omnibox_field_trial.h"
++#include "components/omnibox/browser/omnibox_prefs.h"
+ #include "components/omnibox/browser/omnibox_triggered_feature_service.h"
+ #include "components/omnibox/browser/page_classification_functions.h"
+ #include "components/omnibox/browser/remote_suggestions_service.h"
+@@ -641,6 +642,10 @@ void SearchProvider::DoHistoryQuery(bool
+   if (base::CommandLine::ForCurrentProcess()->HasSwitch("omnibox-autocomplete-filtering"))
+     return;
+ 
++  if (!client()->GetPrefs()->GetBoolean(omnibox::kAutocompleteHistoryEnabled)) {
++    return;
++  }
++
+   // The history query results are synchronous, so if minimal_changes is true,
+   // we still have the last results and don't need to do anything.
+   if (minimal_changes)
+--- a/components/omnibox/browser/shortcuts_provider.cc
++++ b/components/omnibox/browser/shortcuts_provider.cc
+@@ -37,6 +37,7 @@
+ #include "components/omnibox/browser/history_cluster_provider.h"
+ #include "components/omnibox/browser/history_url_provider.h"
+ #include "components/omnibox/browser/omnibox_field_trial.h"
++#include "components/omnibox/browser/omnibox_prefs.h"
+ #include "components/omnibox/browser/omnibox_triggered_feature_service.h"
+ #include "components/omnibox/browser/url_prefix.h"
+ #include "components/omnibox/common/omnibox_feature_configs.h"
+@@ -218,6 +219,10 @@ void ShortcutsProvider::Start(const Auto
+   TRACE_EVENT0("omnibox", "ShortcutsProvider::Start");
+   matches_.clear();
+ 
++  if (!client_->GetPrefs()->GetBoolean(omnibox::kAutocompleteHistoryEnabled)) {
++    return;
++  }
++
+   if (input.IsZeroSuggest() ||
+       input.type() == metrics::OmniboxInputType::EMPTY ||
+       input.text().empty() || !initialized_) {
diff --git a/patches/series b/patches/series
index b6814c2a0..8ca4e1f53 100644
--- a/patches/series
+++ b/patches/series
@@ -200,6 +200,7 @@ helium/settings/update-search-suggest-text.patch
 helium/settings/fix-appearance-page.patch
 helium/settings/remove-dead-imports.patch
 helium/settings/enable-quad9-doh-option.patch
+helium/settings/add-autocomplete-options.patch
 
 helium/hop/setup.patch
 helium/hop/disable-password-manager.patch

From 64a37628166c819c7079edc37a9eb4c101e045d8 Mon Sep 17 00:00:00 2001
From: jj <jj@imput.net>
Date: Fri, 23 Jan 2026 13:25:10 +0000
Subject: [PATCH 2/3] helium/add-autocomplete-options: refresh

---
 .../settings/add-autocomplete-options.patch      | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/patches/helium/settings/add-autocomplete-options.patch b/patches/helium/settings/add-autocomplete-options.patch
index bd635740b..da9f78928 100644
--- a/patches/helium/settings/add-autocomplete-options.patch
+++ b/patches/helium/settings/add-autocomplete-options.patch
@@ -1,6 +1,6 @@
 --- a/chrome/app/settings_strings.grdp
 +++ b/chrome/app/settings_strings.grdp
-@@ -2245,6 +2245,15 @@
+@@ -2372,6 +2372,15 @@
    <message name="IDS_SETTINGS_SEARCH_MANAGE_SEARCH_ENGINES_EXPLANATION" desc="Explanation for the Manage Search Engines button.">
      Create shortcuts for searching sites and manage your search engine
    </message>
@@ -57,7 +57,7 @@
        <div class="cr-row continuation">
 --- a/chrome/browser/ui/webui/settings/settings_localized_strings_provider.cc
 +++ b/chrome/browser/ui/webui/settings/settings_localized_strings_provider.cc
-@@ -2516,6 +2516,11 @@ void AddSearchStrings(content::WebUIData
+@@ -2729,6 +2729,11 @@ void AddSearchStrings(content::WebUIData
        {"searchEnginesCancelButton", IDS_CANCEL},
        {"searchEnginesConfirmationToastLabel",
         IDS_SEARCH_ENGINE_CHOICE_SETTINGS_CONFIRMATION_TOAST_LABEL},
@@ -71,7 +71,7 @@
    html_source->AddString("searchExplanationLearnMoreURL",
 --- a/components/omnibox/browser/omnibox_pref_names.h
 +++ b/components/omnibox/browser/omnibox_pref_names.h
-@@ -69,6 +69,14 @@ inline constexpr char kShowGoogleLensSho
+@@ -81,6 +81,14 @@ inline constexpr char kShowAiModeOmnibox
  // omnibox.
  inline constexpr char kShowSearchTools[] = "omnibox.show_search_tools";
  
@@ -88,7 +88,7 @@
      "omnibox.shown_count_enterprise_search_aggregator_iph";
 --- a/components/omnibox/browser/omnibox_prefs.cc
 +++ b/components/omnibox/browser/omnibox_prefs.cc
-@@ -29,6 +29,9 @@ void RegisterProfilePrefs(PrefRegistrySi
+@@ -32,6 +32,9 @@ void RegisterProfilePrefs(PrefRegistrySi
    registry->RegisterBooleanPref(
        kShowSearchTools, true, user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
  
@@ -100,7 +100,7 @@
        omnibox::kDismissedEnterpriseSearchAggregatorIphPrefName, false);
 --- a/chrome/browser/extensions/api/settings_private/prefs_util.cc
 +++ b/chrome/browser/extensions/api/settings_private/prefs_util.cc
-@@ -513,6 +513,10 @@ const PrefsUtil::TypedPrefMap& PrefsUtil
+@@ -510,6 +510,10 @@ const PrefsUtil::TypedPrefMap& PrefsUtil
        settings_api::PrefType::kDictionary;
    (*s_allowlist)[::omnibox::kKeywordSpaceTriggeringEnabled] =
        settings_api::PrefType::kBoolean;
@@ -134,7 +134,7 @@
    }
 --- a/components/omnibox/browser/history_fuzzy_provider.cc
 +++ b/components/omnibox/browser/history_fuzzy_provider.cc
-@@ -35,6 +35,7 @@
+@@ -36,6 +36,7 @@
  #include "components/omnibox/browser/bookmark_provider.h"
  #include "components/omnibox/browser/history_quick_provider.h"
  #include "components/omnibox/browser/omnibox_field_trial.h"
@@ -142,7 +142,7 @@
  #include "components/omnibox/browser/omnibox_triggered_feature_service.h"
  #include "components/url_formatter/elide_url.h"
  #include "third_party/metrics_proto/omnibox_event.pb.h"
-@@ -496,6 +497,11 @@ void HistoryFuzzyProvider::Start(const A
+@@ -497,6 +498,11 @@ void HistoryFuzzyProvider::Start(const A
                                   bool minimal_changes) {
    TRACE_EVENT0("omnibox", "HistoryFuzzyProvider::Start");
    matches_.clear();
@@ -224,7 +224,7 @@
  #include "components/omnibox/browser/omnibox_triggered_feature_service.h"
  #include "components/omnibox/browser/page_classification_functions.h"
  #include "components/omnibox/browser/remote_suggestions_service.h"
-@@ -641,6 +642,10 @@ void SearchProvider::DoHistoryQuery(bool
+@@ -663,6 +664,10 @@ void SearchProvider::DoHistoryQuery(bool
    if (base::CommandLine::ForCurrentProcess()->HasSwitch("omnibox-autocomplete-filtering"))
      return;
  

From c031642b55f59c8495572df2fe851281a689cd07 Mon Sep 17 00:00:00 2001
From: jj <jj@imput.net>
Date: Fri, 23 Jan 2026 17:24:09 +0000
Subject: [PATCH 3/3] helium/add-autocomplete-options: rename, and-ify
 search_url_database_

---
 ...e-options.patch => add-autocomplete-exclusion-options.patch} | 2 +-
 patches/series                                                  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
 rename patches/helium/settings/{add-autocomplete-options.patch => add-autocomplete-exclusion-options.patch} (99%)

diff --git a/patches/helium/settings/add-autocomplete-options.patch b/patches/helium/settings/add-autocomplete-exclusion-options.patch
similarity index 99%
rename from patches/helium/settings/add-autocomplete-options.patch
rename to patches/helium/settings/add-autocomplete-exclusion-options.patch
index da9f78928..b3fcf334e 100644
--- a/patches/helium/settings/add-autocomplete-options.patch
+++ b/patches/helium/settings/add-autocomplete-exclusion-options.patch
@@ -194,7 +194,7 @@
 +  // HistoryURLProvider doesn't only search history, it is also responsible for
 +  // navigating to exact urls (i.e. https://example.com/), so we need to disable
 +  // **ONLY** history searches. Fortunately, Chromium has a flag for this.
-+  search_url_database_ = client()->GetPrefs()->GetBoolean(
++  search_url_database_ = search_url_database_ && client()->GetPrefs()->GetBoolean(
 +    omnibox::kAutocompleteHistoryEnabled);
 +
    // Remove the keyword from input if we're in keyword mode for a starter pack
diff --git a/patches/series b/patches/series
index f7ec1c0d8..59b7df480 100644
--- a/patches/series
+++ b/patches/series
@@ -204,7 +204,7 @@ helium/settings/fix-appearance-page.patch
 helium/settings/enable-quad9-doh-option.patch
 helium/settings/reorder-settings-menu.patch
 helium/settings/add-search-engine-button.patch
-helium/settings/add-autocomplete-options.patch
+helium/settings/add-autocomplete-exclusion-options.patch
 
 helium/hop/setup.patch
 helium/hop/disable-password-manager.patch