Improve settings override bubble to indicate policy installed extensions

chrome/browser/extensions/ntp_overridden_bubble_delegate.cc

 // Copyright (c) 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/ntp_overridden_bubble_delegate.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_web_ui.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 114 matching lines @@
   UMA_HISTOGRAM_ENUMERATION(
       "ExtensionOverrideBubble.NtpOverriddenUserSelection",
       action,
       ExtensionMessageBubbleController::ACTION_BOUNDARY);
 }
 
 const char* NtpOverriddenBubbleDelegate::GetKey() {
   return "NtpOverriddenBubbleDelegate";
 }
 
+bool NtpOverriddenBubbleDelegate::SupportsPolicyIndicator() {
+  return true;
+}
+
 }  // namespace extensions