Use a direct include of utf_string_conversions.h in chrome/browser/, part 3.

chrome/browser/tab_contents/spelling_menu_observer_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/tab_contents/spelling_menu_observer.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/spellchecker/spelling_service_client.h"
 #include "chrome/browser/tab_contents/render_view_context_menu.h"
 #include "chrome/browser/tab_contents/render_view_context_menu_observer.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/testing_profile.h"
 
 using content::RenderViewHost;
@@ skipping 459 matching lines @@
   menu()->CreateRequestContext();
   InitMenu("asdfkj", NULL);
 
   // Should have at least 2 entries. Separator, suggestion.
   EXPECT_LT(2U, menu()->GetMenuSize());
   menu()->GetMenuItem(0, &item);
   EXPECT_EQ(-1, item.command_id);
   menu()->GetMenuItem(1, &item);
   EXPECT_EQ(IDC_CONTENT_CONTEXT_SPELLING_SUGGESTION, item.command_id);
 }