Unlaunch the HIDDEN mode.

chrome/browser/about_flags.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/about_flags.h"
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 #include <set>
@@ skipping 297 matching lines @@
     SINGLE_VALUE_TYPE(switches::kFocusExistingTabOnOpen)
   },
   {
     "tab-groups-context-menu",
     IDS_FLAGS_TAB_GROUPS_CONTEXT_MENU_NAME,
     IDS_FLAGS_TAB_GROUPS_CONTEXT_MENU_DESCRIPTION,
     kOsWin,
     SINGLE_VALUE_TYPE(switches::kEnableTabGroupsContextMenu)
   },
   {
-    "preload-instant-search",
-    IDS_FLAGS_PRELOAD_INSTANT_SEARCH_NAME,
-    IDS_FLAGS_PRELOAD_INSTANT_SEARCH_DESCRIPTION,
-    kOsAll,
-    SINGLE_VALUE_TYPE(switches::kPreloadInstantSearch)
-  },
-  {
     "static-ip-config",
     IDS_FLAGS_STATIC_IP_CONFIG_NAME,
     IDS_FLAGS_STATIC_IP_CONFIG_DESCRIPTION,
     kOsCrOS,
 #if defined(OS_CHROMEOS)
     // This switch exists only on Chrome OS.
     SINGLE_VALUE_TYPE(switches::kEnableStaticIPConfig)
 #else
     SINGLE_VALUE_TYPE("")
 #endif
@@ skipping 789 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags