Ensure that data doesn't leak between users on cros chrome crash.

chrome/browser/profile_manager.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.
 
 // This class keeps track of the currently-active profiles in the runtime.
 
 #ifndef CHROME_BROWSER_PROFILE_MANAGER_H__
 #define CHROME_BROWSER_PROFILE_MANAGER_H__
 
 #include <map>
@@ skipping 56 matching lines @@
 class ProfileManager : public NonThreadSafe,
                        public SystemMonitor::PowerObserver,
                        public NotificationObserver {
  public:
   ProfileManager();
   virtual ~ProfileManager();
 
   // Invokes ShutdownSessionService() on all profiles.
   static void ShutdownSessionServices();
 
-  // Returns profile to use for Chrome in login wizard mode.
-  static Profile* GetLoginWizardProfile();
-
   // Returns the default profile.  This adds the profile to the
   // ProfileManager if it doesn't already exist.  This method returns NULL if
   // the profile doesn't exist and we can't create it.
-  // The profile used can be overridden by using --profile on
+  // The profile used can be overridden by using --login-profile on cros.
   Profile* GetDefaultProfile(const FilePath& user_data_dir);
 
+  // Same as instance method but provides the default user_data_dir as well.
+  static Profile* GetDefaultProfile();
+
   // Returns a profile for a specific profile directory within the user data
   // dir. This will return an existing profile it had already been created,
   // otherwise it will create and manage it.
   Profile* GetProfile(const FilePath& profile_dir);
 
   // These allow iteration through the current list of profiles.
   typedef std::vector<Profile*> ProfileVector;
   typedef ProfileVector::iterator iterator;
   typedef ProfileVector::const_iterator const_iterator;
 
@@ skipping 61 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_EVIL_CONSTRUCTORS(ProfileManager);
 };
 
 #endif  // CHROME_BROWSER_PROFILE_MANAGER_H__