Reintroduce proper checking for owner profile for the UI.

chrome/browser/ui/webui/options/chromeos/core_chromeos_options_handler.cc

Index: chrome/browser/ui/webui/options/chromeos/core_chromeos_options_handler.cc
diff --git a/chrome/browser/ui/webui/options/chromeos/core_chromeos_options_handler.cc b/chrome/browser/ui/webui/options/chromeos/core_chromeos_options_handler.cc
index 5771c5e3bf5dfa8325c8bfa8c1948e8fef5b4e2c..6524a25a5d3b15e923730db9e608fb7dc1efbaab 100644
--- a/chrome/browser/ui/webui/options/chromeos/core_chromeos_options_handler.cc
+++ b/chrome/browser/ui/webui/options/chromeos/core_chromeos_options_handler.cc
@@ -182,9 +182,7 @@ base::Value* CoreChromeOSOptionsHandler::FetchPref(
         g_browser_process->platform_part()->browser_policy_connector_chromeos();
     if (connector->IsEnterpriseManaged())
       controlled_by = "policy";
-    // TODO(pastarmovj): Replace this call with a multi-profile aware one.
-    // see http://crbug.com/362430
-    else if (!UserManager::Get()->IsCurrentUserOwner())
+    else if (!ProfileHelper::IsOwnerProfile(Profile::FromWebUI(web_ui())))
       controlled_by = "owner";
   }
   dict->SetBoolean("disabled", !controlled_by.empty());