Use a direct include of utf_string_conversions.h in chrome/browser/, part 2.

chrome/browser/notifications/desktop_notifications_unittest.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/notifications/desktop_notifications_unittest.h"
 
 #include "base/prefs/testing_pref_service.h"
 #include "base/string_util.h"
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/notifications/balloon_notification_ui_manager.h"
 #include "chrome/browser/notifications/fake_balloon_view.h"
 #include "chrome/browser/prefs/browser_prefs.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_profile.h"
 #include "chrome/test/base/testing_profile_manager.h"
 #include "content/public/common/show_desktop_notification_params.h"
 #include "ui/message_center/message_center.h"
 
@@ skipping 553 matching lines @@
   }
 
   // Now change the position to upper left.  Confirm that the X value for the
   // balloons gets smaller.
   local_state_.SetInteger(prefs::kDesktopNotificationPosition,
                           BalloonCollection::UPPER_LEFT);
 
   int current_x = (*balloons.begin())->GetPosition().x();
   EXPECT_LT(current_x, last_x);
 }