Update other unittests to use newly added TestingBrowserProcess::GetGlobal().

chrome/browser/chromeos/login/login_utils_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 "chrome/browser/chromeos/login/login_utils.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 119 matching lines @@
   // started - so this is a way to fake multiple threads on a single
   // test thread).  The IO thread does not get the message loop set,
   // and is never started.  This is necessary so that we skip various
   // bits of initialization that get posted to the IO thread.  We do
   // however, at one point in the test, temporarily set the message
   // loop for the IO thread.
   LoginUtilsTest()
       : fake_io_thread_completion_(false, false),
         fake_io_thread_("fake_io_thread"),
         loop_(MessageLoop::TYPE_IO),
-        browser_process_(
-            static_cast<TestingBrowserProcess*>(g_browser_process)),
+        browser_process_(TestingBrowserProcess::GetGlobal()),
         local_state_(browser_process_),
         ui_thread_(BrowserThread::UI, &loop_),
         db_thread_(BrowserThread::DB),
         file_thread_(BrowserThread::FILE, &loop_),
         mock_async_method_caller_(NULL),
         connector_(NULL),
         cryptohome_(NULL),
         prepared_profile_(NULL),
         created_profile_(NULL) {}
 
@@ skipping 529 matching lines @@
 }
 
 INSTANTIATE_TEST_CASE_P(
     LoginUtilsBlockingLoginTestInstance,
     LoginUtilsBlockingLoginTest,
     testing::Values(0, 1, 2, 3, 4, 5));
 
 }  // namespace
 
 }