Use a direct include of strings headers in chrome/installer/, part 2.

chrome/installer/util/language_selector.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.
 //
 // This file defines a helper class for selecting a supported language from a
 // set of candidates.
 
 #include "chrome/installer/util/language_selector.h"
 
 #include <algorithm>
 #include <functional>
 
 #include "base/logging.h"
-#include "base/string_util.h"
+#include "base/strings/string_util.h"
 #include "base/win/i18n.h"
 #include "chrome/installer/util/google_update_settings.h"
 
 #include "installer_util_strings.h"
 
 namespace {
 
 struct LangToOffset {
   const wchar_t* language;
   int offset;
@@ skipping 261 matching lines @@
     VLOG(1) << "No suitable language found for any candidates.";
 
     // Our fallback is "en-us"
     matched_candidate_.assign(&kFallbackLanguage[0],
                               arraysize(kFallbackLanguage) - 1);
     offset_ = kFallbackLanguageOffset;
   }
 }
 
 }  // namespace installer