Improve settings override bubble to indicate policy installed extensions

chrome/browser/extensions/settings_api_bubble_delegate.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/settings_api_bubble_delegate.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/settings_api_helpers.h"
@@ skipping 233 matching lines @@
       return "SettingsApiBubbleDelegate.HomePage";
     case BUBBLE_TYPE_STARTUP_PAGES:
       return "SettingsApiBubbleDelegate.StartupPages";
     case BUBBLE_TYPE_SEARCH_ENGINE:
       return "SettingsApiBubbleDelegate.SearchEngine";
   }
   NOTREACHED();
   return "";
 }
 
+bool SettingsApiBubbleDelegate::SupportsPolicyIndicator() {
+  return true;
+}
+
 }  // namespace extensions