Start and stop the safe browsing service depending on whether any profile is using it.

chrome/common/chrome_notification_types.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_
 #define CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_
 #pragma once
 
 #include "content/common/content_notification_types.h"
 
@@ skipping 255 matching lines @@
 
   // Sent by history when the favicon of a URL changes.  The source is the
   // profile, and the details is history::FaviconChangeDetails (see
   // history_notifications.h).
   NOTIFICATION_FAVICON_CHANGED,
 
   // Sent by FaviconTabHelper when a tab's favicon has been successfully
   // updated.
   NOTIFICATION_FAVICON_UPDATED,
 
-  // Sent after an incognito profile has been created. The details are none
-  // and the source is the new profile.
-  NOTIFICATION_OTR_PROFILE_CREATED,
+  // Sent after a Profile has been created. This notification is sent both for
+  // normal and OTR profiles.
+  // The details are none and the source is the new profile.
+  NOTIFICATION_PROFILE_CREATED,
 
-  // Sent before a Profile is destroyed. The details are
-  // none and the source is a Profile*.
+  // Sent before a Profile is destroyed. This notification is sent both for
+  // normal and OTR profiles.
+  // The details are none and the source is a Profile*.
   NOTIFICATION_PROFILE_DESTROYED,
 
   // TopSites ----------------------------------------------------------------
 
   // Sent by TopSites when it finishes loading. The source is the profile the
   // details the TopSites.
   NOTIFICATION_TOP_SITES_LOADED,
 
   // Sent by TopSites when it has finished updating its most visited URLs
   // cache after querying the history service. The source is the TopSites and
@@ skipping 632 matching lines @@
   // Currently only Content and Chrome define and use notifications.
   // Custom notifications not belonging to Content and Chrome should start
   // from here.
   NOTIFICATION_CHROME_END,
 };
 
 }  // namespace chrome
 
 
 #endif  // CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_