Fix crash when locking a profile.

chrome/browser/extensions/api/principals_private/principals_private_api.cc

 // 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.
 
 #include "chrome/browser/extensions/api/principals_private/principals_private_api.h"
 
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/avatar_menu.h"
-#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/profiles/profile_window.h"
 #include "chrome/browser/profiles/profiles_state.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 
 namespace extensions {
 
 bool PrincipalsPrivateExtensionFunction::RunImpl() {
   if (!profiles::IsNewProfileManagementEnabled()) {
     SetError(
         "Need to enable new-profile-management to use principalsPrivate API.");
     return false;
   }
   return RunImplSafe();
 }
 
 bool PrincipalsPrivateSignOutFunction::RunImplSafe() {
   Browser* browser = GetCurrentBrowser();
   if (browser) {
-    AvatarMenu avatar_menu(
-        &g_browser_process->profile_manager()->GetProfileInfoCache(), NULL,
-        browser);
-    avatar_menu.BeginSignOut();
+    profiles::LockProfile(browser->profile());
   }
   return true;
 }
 
 bool PrincipalsPrivateShowAvatarBubbleFunction::RunImplSafe() {
   Browser* browser = GetCurrentBrowser();
   if (browser)
     browser->window()->ShowAvatarBubbleFromAvatarButton();
   return true;
 }
 
 }  // namespace extensions