Take 2 at browser_sync::ExtensionsActivityMonitor....

chrome/common/notification_type.h

 // Copyright (c) 2009 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_NOTIFICATION_TYPE_H_
 #define CHROME_COMMON_NOTIFICATION_TYPE_H_
 
 // This file describes various types used to describe and filter notifications
 // that pass through the NotificationService.
 //
@@ skipping 594 matching lines @@
 
     // Sent on the browser IO thread when an URLRequestContext is released by
     // its owning Profile.  The source is a pointer to the URLRequestContext.
     URL_REQUEST_CONTEXT_RELEASED,
 
     // Sent when WM_ENDSESSION has been received, after the browsers have been
     // closed but before browser process has been shutdown. The source/details
     // are all source and no details.
     SESSION_END,
 
-    // Personalization ---------------------------------------------------------
-
-    PERSONALIZATION,
-    PERSONALIZATION_CREATED,
-
     // Privacy blacklists ------------------------------------------------------
 
     // Sent when a privacy blacklist path provider changes the list of its
     // blacklist paths (like adds/removes items). The details are
     // a BlacklistPathProvider, and the source is a Profile.
     PRIVACY_BLACKLIST_PATH_PROVIDER_UPDATED,
 
     // User Scripts ------------------------------------------------------------
 
     // Sent when there are new user scripts available.  The details are a
@@ skipping 77 matching lines @@
 
     // Sent when a browser action's state has changed. The source is the
     // ExtensionAction* that changed. The details are an ExtensionActionState*.
     EXTENSION_BROWSER_ACTION_UPDATED,
 
     // Sent by an extension to notify the browser about the results of a unit
     // test.
     EXTENSION_TEST_PASSED,
     EXTENSION_TEST_FAILED,
 
+    // Sent when an bookmarks extensions API function was successfully invoked.
+    // The source is the id of the extension that invoked the function, and the
+    // details are a pointer to the const BookmarksFunction in question.
+    EXTENSION_BOOKMARKS_API_INVOKED,
+
     // Privacy Blacklist -------------------------------------------------------
 
     // Sent by the resource dispatcher host when a resource is blocked.
     BLACKLIST_BLOCKED_RESOURCE,
 
     // Debugging ---------------------------------------------------------------
 
     // TODO(mpcomplete): Sent to diagnose a bug. Remove when fixed.
     // http://code.google.com/p/chromium/issues/detail?id=21201
     EXTENSION_PORT_DELETED_DEBUG,
@@ skipping 17 matching lines @@
 };
 
 inline bool operator==(NotificationType::Type a, NotificationType b) {
   return a == b.value;
 }
 inline bool operator!=(NotificationType::Type a, NotificationType b) {
   return a != b.value;
 }
 
 #endif  // CHROME_COMMON_NOTIFICATION_TYPE_H_