Revert of Remove disable-app-list-voice-search flag.

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 <iterator>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 1503 matching lines @@
   },
 #endif
   {
     "disable-app-list-app-info",
     IDS_FLAGS_DISABLE_APP_INFO_IN_APP_LIST,
     IDS_FLAGS_DISABLE_APP_INFO_IN_APP_LIST_DESCRIPTION,
     kOsLinux | kOsWin | kOsCrOS,
     SINGLE_VALUE_TYPE(app_list::switches::kDisableAppInfo)
   },
   {
+    "disable-app-list-voice-search",
+    IDS_FLAGS_DISABLE_APP_LIST_VOICE_SEARCH,
+    IDS_FLAGS_DISABLE_APP_LIST_VOICE_SEARCH_DESCRIPTION,
+    kOsCrOS,
+    SINGLE_VALUE_TYPE(app_list::switches::kDisableVoiceSearch)
+  },
+  {
     "enable-drive-apps-in-app-list",
     IDS_FLAGS_ENABLE_DRIVE_APPS_IN_APP_LIST_NAME,
     IDS_FLAGS_ENABLE_DRIVE_APPS_IN_APP_LIST_DESCRIPTION,
     kOsDesktop,
     SINGLE_VALUE_TYPE(app_list::switches::kEnableDriveAppsInAppList)
   },
 #endif
 #if defined(OS_ANDROID)
   {
     "enable-accessibility-tab-switcher",
@@ skipping 933 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags