Fixing problem that after a browser crash in multi user mode, an incorrect user might show up.

chrome/browser/profiles/profile_manager.h

 // Copyright (c) 2012 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_
 
 #include <list>
@@ skipping 260 matching lines @@
   void SetGuestProfilePrefs(Profile* profile);
 
   // For ChromeOS, determines if profile should be otr.
   bool ShouldGoOffTheRecord(Profile* profile);
 
   void RunCallbacks(const std::vector<CreateCallback>& callbacks,
                     Profile* profile,
                     Profile::CreateStatus status);
 
 #if !defined(OS_ANDROID) && !defined(OS_IOS)
+  // Updates the last active user of the current session.
+  void UpdateLastUser(Profile* last_active);
+
   class BrowserListObserver : public chrome::BrowserListObserver {
    public:
     explicit BrowserListObserver(ProfileManager* manager);
     virtual ~BrowserListObserver();
 
     // chrome::BrowserListObserver implementation.
     virtual void OnBrowserAdded(Browser* browser) OVERRIDE;
     virtual void OnBrowserRemoved(Browser* browser) OVERRIDE;
     virtual void OnBrowserSetLastActive(Browser* browser) OVERRIDE;
 
@@ skipping 60 matching lines @@
 class ProfileManagerWithoutInit : public ProfileManager {
  public:
   explicit ProfileManagerWithoutInit(const base::FilePath& user_data_dir);
 
  protected:
   virtual void DoFinalInitForServices(Profile*, bool) OVERRIDE {}
   virtual void DoFinalInitLogging(Profile*) OVERRIDE {}
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_