Temporarily disable HaTS for supervised users

Attempting to show HaTS for supervised users will cause ChromeOS to
crash because incognito mode is disabled. Disable HaTS until it is
ready for supervised users.

Bug: 1055022
Change-Id: I1b7286410a6c2b9c08145862d45944c320ee44c2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2070111
Auto-Submit: Toby Huang <tobyhuang@chromium.org>
Reviewed-by: Malay Keshav <malaykeshav@chromium.org>
Commit-Queue: Toby Huang <tobyhuang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#744103}

chrome/browser/chromeos/hats/hats_notification_controller.cc

@@ -137,6 +137,12 @@ bool HatsNotificationController::ShouldShowSurveyToProfile(Profile* profile) {
   if (profile->IsGuestSession())
     return false;
 
+  // Do not show survey if this is a child profile, for now. See crbug/1055022.
+  // TODO(crbug/1050807): remove this check after enabling HaTS for supervised
+  // users.
+  if (profile->IsChild())
+    return false;
+
   const bool is_enterprise_enrolled = g_browser_process->platform_part()
                                           ->browser_policy_connector_chromeos()
                                           ->IsEnterpriseManaged();