Add the "virtual" keyword on method overrides that are missing it.

chrome/browser/profiles/profile_manager.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.
 
 // This class keeps track of the currently-active profiles in the runtime.
 
 #ifndef CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_
 #pragma once
 
@@ skipping 50 matching lines @@
   typedef std::vector<Profile*> ProfileVector;
   typedef ProfileVector::iterator iterator;
   typedef ProfileVector::const_iterator const_iterator;
 
   iterator begin() { return profiles_.begin(); }
   const_iterator begin() const { return profiles_.begin(); }
   iterator end() { return profiles_.end(); }
   const_iterator end() const { return profiles_.end(); }
 
   // PowerObserver notifications
-  void OnSuspend();
-  void OnResume();
+  virtual void OnSuspend();
+  virtual void OnResume();
 
   // NotificationObserver implementation.
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
   // ------------------ static utility functions -------------------
 
   // Returns the path to the default profile directory, based on the given
   // user data directory.
@@ skipping 36 matching lines @@
 
   // Indicates that a user has logged in and that the profile specified
   // in the --login-profile command line argument should be used as the
   // default.
   bool logged_in_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileManager);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_