Flag-flip of app-list-voice-search. Now it's on by default.

ui/app_list/app_list_switches.cc

Index: ui/app_list/app_list_switches.cc
diff --git a/ui/app_list/app_list_switches.cc b/ui/app_list/app_list_switches.cc
index 8244b4fa9cdf9afb8d2fb6ccdc12f8d32fd1c9b9..83f5cd569bca1e224e3d23c554774e8f7cc64d51 100644
--- a/ui/app_list/app_list_switches.cc
+++ b/ui/app_list/app_list_switches.cc
@@ -12,8 +12,8 @@ namespace switches {
 // If set, folder will be enabled in app list UI.
 const char kEnableFolderUI[] = "enable-app-list-folder-ui";
 
-// If set, the voice search is enabled in app list UI.
-const char kEnableVoiceSearch[] = "enable-app-list-voice-search";
+// If set, the voice search is disabled in app list UI.
+const char kDisableVoiceSearch[] = "disable-app-list-voice-search";
 
 bool IsFolderUIEnabled() {
   return CommandLine::ForCurrentProcess()->HasSwitch(kEnableFolderUI);