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

chrome/browser/chromeos/settings/cros_settings_unittest.cc

Index: chrome/browser/chromeos/settings/cros_settings_unittest.cc
diff --git a/chrome/browser/chromeos/settings/cros_settings_unittest.cc b/chrome/browser/chromeos/settings/cros_settings_unittest.cc
index fe76ec38c06d574b991c06a37218c5b57f12f4e2..9c43c42206e249433bc3ecdbfc64ebbbddfd4c9e 100644
--- a/chrome/browser/chromeos/settings/cros_settings_unittest.cc
+++ b/chrome/browser/chromeos/settings/cros_settings_unittest.cc
@@ -31,7 +31,7 @@ class CrosSettingsTest : public testing::Test {
   CrosSettingsTest()
       : message_loop_(MessageLoop::TYPE_UI),
         ui_thread_(content::BrowserThread::UI, &message_loop_),
-        local_state_(static_cast<TestingBrowserProcess*>(g_browser_process)),
+        local_state_(TestingBrowserProcess::GetGlobal()),
         weak_factory_(this) {}
 
   virtual ~CrosSettingsTest() {}