Hide Night Light behind a flag

chrome/browser/ui/webui/settings/md_settings_localized_strings_provider.cc

Index: chrome/browser/ui/webui/settings/md_settings_localized_strings_provider.cc
diff --git a/chrome/browser/ui/webui/settings/md_settings_localized_strings_provider.cc b/chrome/browser/ui/webui/settings/md_settings_localized_strings_provider.cc
index 87c40406d8fd9b46dc50b1c5f19762d043448f79..121986490c78193157da825f33a2ff8bc4188472 100644
--- a/chrome/browser/ui/webui/settings/md_settings_localized_strings_provider.cc
+++ b/chrome/browser/ui/webui/settings/md_settings_localized_strings_provider.cc
@@ -35,6 +35,7 @@
 
 #if defined(OS_CHROMEOS)
 #include "ash/system/devicetype_utils.h"
+#include "ash/system/night_light/night_light_controller.h"
 #include "chrome/browser/chromeos/ownership/owner_settings_service_chromeos.h"
 #include "chrome/browser/chromeos/ownership/owner_settings_service_chromeos_factory.h"
 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
@@ -699,6 +700,9 @@ void AddDeviceStrings(content::WebUIDataSource* html_source) {
       base::CommandLine::ForCurrentProcess()->HasSwitch(
           chromeos::switches::kEnableTouchCalibrationSetting));
 
+  html_source->AddBoolean("nightLightFeatureEnabled",
+                          ash::NightLightController::IsFeatureEnabled());
+
   LocalizedString storage_strings[] = {
       {"storageTitle", IDS_SETTINGS_STORAGE_TITLE},
       {"storageItemInUse", IDS_SETTINGS_STORAGE_ITEM_IN_USE},