Replace the WAS_INSTALLED_BY_CUSTODIAN creation flag with a pref

chrome/browser/extensions/unpacked_installer.cc

Index: chrome/browser/extensions/unpacked_installer.cc
diff --git a/chrome/browser/extensions/unpacked_installer.cc b/chrome/browser/extensions/unpacked_installer.cc
index f812a2f5f368e2391f6404ffb8128699c844337f..754bb0bcca1c1af4b862234b6bfa56fd3c0b7ffe 100644
--- a/chrome/browser/extensions/unpacked_installer.cc
+++ b/chrome/browser/extensions/unpacked_installer.cc
@@ -13,6 +13,7 @@
 #include "chrome/browser/extensions/extension_install_prompt.h"
 #include "chrome/browser/extensions/extension_management.h"
 #include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/extensions/permissions_updater.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/extensions/extension_install_ui_factory.h"
@@ -258,9 +259,14 @@ int UnpackedInstaller::GetFlags() {
   if (prefs->HasAllowFileAccessSetting(id))
     allow_file_access = prefs->AllowFileAccess(id);
 
+  bool installed_by_custodian =
+      extensions::util::WasInstalledByCustodian(id, service_weak_->profile());
+
   int result = Extension::FOLLOW_SYMLINKS_ANYWHERE;
   if (allow_file_access)
     result |= Extension::ALLOW_FILE_ACCESS;
+  if (installed_by_custodian)
+    result |= Extension::WAS_INSTALLED_BY_CUSTODIAN;
   if (require_modern_manifest_version_)
     result |= Extension::REQUIRE_MODERN_MANIFEST_VERSION;