Mac - show user manager before opening browser.

chrome/browser/ui/views/profiles/user_manager_view.cc

 // Copyright 2014 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/ui/views/profiles/user_manager_view.h"
 
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/profiles/profile_avatar_icon_util.h"
 #include "chrome/browser/profiles/profile_manager.h"
@@ skipping 30 matching lines @@
 UserManagerView* instance_ = NULL;
 
 } // namespace
 
 // UserManager -----------------------------------------------------------------
 
 void UserManager::Show(
     const base::FilePath& profile_path_to_focus,
     profiles::UserManagerTutorialMode tutorial_mode,
     profiles::UserManagerProfileSelected profile_open_action) {
+  DCHECK(profile_path_to_focus != ProfileManager::GetGuestProfilePath());
+
   ProfileMetrics::LogProfileSwitchUser(ProfileMetrics::OPEN_USER_MANAGER);
   if (instance_) {
     // If we are showing the User Manager after locking a profile, change the
     // active profile to Guest.
     profiles::SetActiveProfileToGuestIfLocked();
 
     // If there's a user manager window open already, just activate it.
     instance_->GetWidget()->Activate();
     return;
   }
@@ skipping 138 matching lines @@
   // Now that the window is closed, we can allow a new one to be opened.
   // (WindowClosing comes in asynchronously from the call to Close() and we
   // may have already opened a new instance).
   if (instance_ == this)
     instance_ = NULL;
 }
 
 bool UserManagerView::UseNewStyleForThisDialog() const {
   return false;
 }