Access to Chrome via the System Tray should go through the User Manager.

chrome/browser/profiles/profile_manager_browsertest.cc

 // Copyright (c) 2012 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 "base/bind.h"
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/password_manager/password_store_factory.h"
 #include "chrome/browser/profiles/profile_info_cache.h"
@@ skipping 17 matching lines @@
 #if defined(OS_CHROMEOS)
 #include "base/path_service.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chromeos/chromeos_switches.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #endif
 
 namespace {
 
-const profiles::ProfileSwitchingDoneCallback kOnProfileSwitchDoNothing;
+const ProfileManager::CreateCallback kOnProfileSwitchDoNothing;
 
 // An observer that returns back to test code after a new profile is
 // initialized.
 void OnUnblockOnProfileCreation(Profile* profile,
                                 Profile::CreateStatus status) {
   if (status == Profile::CREATE_STATUS_INITIALIZED)
     base::MessageLoop::current()->Quit();
 }
 
 void ProfileCreationComplete(Profile* profile, Profile::CreateStatus status) {
@@ skipping 394 matching lines @@
       run_loop.QuitClosure());
   EXPECT_TRUE(password_store->ScheduleTask(task));
   run_loop.Run();
 
   EXPECT_TRUE(verify_add.IsCalled());
   EXPECT_EQ(1u, verify_add.GetPasswords().size());
   EXPECT_TRUE(verify_delete.IsCalled());
   EXPECT_EQ(0u, verify_delete.GetPasswords().size());
 }
 #endif  // !defined(OS_WIN) && !defined(OS_ANDROID) && !defined(OS_CHROMEOS)