Add a startup check to create profile shortcuts for legacy Chrome profiles.

chrome/browser/profiles/profile_shortcut_manager_win.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_BROWSER_PROFILES_PROFILE_SHORTCUT_MANAGER_WIN_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_SHORTCUT_MANAGER_WIN_H_
 #pragma once
 
 #include <vector>
 
 #include "base/string16.h"
 #include "chrome/browser/profiles/profile_info_cache_observer.h"
 
 // This class observes the ProfileInfoCache, and makes corresponding changes
 // to shortcuts on the user's desktop in Windows systems.
 class ProfileShortcutManagerWin : public ProfileInfoCacheObserver {
  public:
   ProfileShortcutManagerWin();
   virtual ~ProfileShortcutManagerWin();
 
+  // Create a profile shortcut for the profile with path |profile_path|, plus
+  // update the original profile shortcut if |profile_path| is the second
+  // profile created.
+  virtual void AddProfileShortcut(const FilePath& profile_path);
+
   // ProfileInfoCacheObserver:
   virtual void OnProfileAdded(const FilePath& profile_path) OVERRIDE;
   virtual void OnProfileWillBeRemoved(
       const FilePath& profile_path) OVERRIDE;
   virtual void OnProfileWasRemoved(
       const FilePath& profile_path,
       const string16& profile_name) OVERRIDE;
   virtual void OnProfileNameChanged(
       const FilePath& profile_path,
       const string16& old_profile_name) OVERRIDE;
   virtual void OnProfileAvatarChanged(const FilePath& profile_path) OVERRIDE;
 
   // Takes a vector of profile names (for example: "Sparky") and generates a
   // vector of shortcut link names (for example: "Chromium (Sparky).lnk").
   static std::vector<string16> GenerateShortcutsFromProfiles(
       const std::vector<string16>& profile_names);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ProfileShortcutManagerWin);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_SHORTCUT_MANAGER_WIN_H_