Add user customizable launch type for apps.

chrome/browser/prefs/pref_notifier.h

 // Copyright (c) 2010 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_BROWSER_PREFS_PREF_NOTIFIER_H_
 #define CHROME_BROWSER_PREFS_PREF_NOTIFIER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 53 matching lines @@
 
   // Convenience method to be called when a preference is set in the
   // USER_STORE. See OnPreferenceSet().
   void OnUserPreferenceSet(const char* pref_name);
 
   // For the given pref_name, fire any observer of the pref. Virtual so it can
   // be mocked for unit testing.
   virtual void FireObservers(const char* path);
 
   // If the pref at the given path changes, we call the observer's Observe
-  // method with NOTIFY_PREF_CHANGED.
+  // method with PREF_CHANGED.
   void AddPrefObserver(const char* path, NotificationObserver* obs);
   void RemovePrefObserver(const char* path, NotificationObserver* obs);
 
  protected:
   // A map from pref names to a list of observers.  Observers get fired in the
   // order they are added. These should only be accessed externally for unit
   // testing.
   typedef ObserverList<NotificationObserver> NotificationObserverList;
   typedef base::hash_map<std::string, NotificationObserverList*>
       PrefObserverMap;
@@ skipping 19 matching lines @@
 
   // NotificationObserver methods:
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
   DISALLOW_COPY_AND_ASSIGN(PrefNotifier);
 };
 
 #endif  // CHROME_BROWSER_PREFS_PREF_NOTIFIER_H_