Switch ChromeTestSuite to the same convention as ContentTestSuite:

chrome/browser/chromeos/login/user_controller_unittest.cc

 // Copyright (c) 2010 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/chromeos/login/user_controller.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "grit/generated_resources.h"
@@ skipping 11 matching lines @@
 TEST(UserControllerTest, GetNameTooltipIncognitoUser) {
   UserController new_user_controller(NULL, true);
   EXPECT_EQ(UTF16ToWide(l10n_util::GetStringUTF16(IDS_GO_INCOGNITO_BUTTON)),
             new_user_controller.GetNameTooltip());
 }
 
 TEST(UserControllerTest, GetNameTooltipExistingUser) {
   // We need to have NotificationService and g_browser_process initialized
   // before we create UserController for existing user.
   // Otherwise we crash with either SEGFAULT or DCHECK.
-  ScopedTestingBrowserProcess browser_process;
   UserManager::User existing_user;
   existing_user.set_email("someordinaryuser@domain.com");
   UserController existing_user_controller(NULL, existing_user);
   EXPECT_EQ(L"someordinaryuser (domain.com)",
             existing_user_controller.GetNameTooltip());
 }
 
 }  // namespace chromeos