Loading the Launcher with a Locked Profile launched UserManager.

chrome/browser/ui/app_list/app_list_service.h

 // Copyright 2013 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_UI_APP_LIST_APP_LIST_SERVICE_H_
 #define CHROME_BROWSER_UI_APP_LIST_APP_LIST_SERVICE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 36 matching lines @@
                                 // when the launcher is auto-shown without
                                 // being "discovered" beforehand.
     ENABLE_NUM_ENABLE_SOURCES
   };
 
   // Get the AppListService for the current platform and specified
   // |desktop_type|.
   static AppListService* Get(chrome::HostDesktopType desktop_type);
 
   // Call Init for all AppListService instances on this platform.
-  static void InitAll(Profile* initial_profile);
+  static void InitAll(Profile* initial_profile,
+                      const base::FilePath& profile_path);

[xiyuan, 2015/01/16 20:31:52]

app_list_service_ash.cc and app_list_service_linux.cc need to be updated for
this too.

[Mike Lerman, 2015/01/19 21:08:56]

Ah, I did? Those files just aren't in the same subdirectory, but I modified the
InitAll() methods.

 
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
   // Initializes the AppListService, and returns true if |command_line| is for
   // showing the app list.
   static bool HandleLaunchCommandLine(const base::CommandLine& command_line,
                                       Profile* launch_profile);
 
   // Indicates that |callback| should be called next time the app list is
   // painted.
@@ skipping 59 matching lines @@
   virtual ~AppListService() {}
 
   // Do any once off initialization needed for the app list.
   virtual void Init(Profile* initial_profile) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AppListService);
 };
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_APP_LIST_SERVICE_H_