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

chrome/browser/signin/about_signin_internals.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/signin/about_signin_internals.h"
 
 #include "base/debug/trace_event.h"
 #include "base/hash.h"
 #include "base/i18n/time_formatting.h"
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/signin/signin_internals_util.h"
 #include "chrome/browser/signin/signin_manager.h"
 #include "chrome/browser/signin/token_service.h"
 #include "chrome/browser/signin/token_service_factory.h"
 #include "chrome/browser/ui/webui/signin_internals_ui.h"
 #include "google_apis/gaia/gaia_constants.h"
 
 using base::Time;
 using namespace signin_internals_util;
@@ skipping 213 matching lines @@
 }
 
 Time AboutSigninInternals::GetTokenTime(
     const std::string& token_name) const {
   TokenInfoMap::const_iterator iter =
       signin_status_.token_info_map.find(token_name);
   if (iter == signin_status_.token_info_map.end())
     return base::Time();
   return base::Time::FromInternalValue(iter->second.time_internal);
 }