I forgot to add #include <functional> to l10n_util.h for using binary_functio...

chrome/common/l10n_util.h

 // Copyright (c) 2006-2008 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 contains utility functions for dealing with localized
 // content.
 
 #ifndef CHROME_COMMON_L10N_UTIL_H_
 #define CHROME_COMMON_L10N_UTIL_H_
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 #include <algorithm>
+#include <functional>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
 #include "base/string_util.h"
 #include "third_party/icu38/public/common/unicode/ubidi.h"
 #include "unicode/coll.h"
 #include "unicode/locid.h"
@@ skipping 249 matching lines @@
 
  private:
   UBiDi* bidi_;
 
   DISALLOW_COPY_AND_ASSIGN(BiDiLineIterator);
 };
 
 }
 
 #endif  // CHROME_COMMON_L10N_UTIL_H_