Normalize download file name on chromeos

base/i18n/file_util_icu.h

Index: base/i18n/file_util_icu.h
diff --git a/base/i18n/file_util_icu.h b/base/i18n/file_util_icu.h
index 57acea64de8a99e314247ae2d2c12335dfd22bfd..dab3bf1c6e62b3372ad197653e80a0e0ef9733d1 100644
--- a/base/i18n/file_util_icu.h
+++ b/base/i18n/file_util_icu.h
@@ -35,6 +35,10 @@ BASE_I18N_EXPORT void ReplaceIllegalCharactersInPath(
 BASE_I18N_EXPORT bool LocaleAwareCompareFilenames(const FilePath& a,
                                                   const FilePath& b);
 
+// Calculates the canonical file-system representation of |file_name| base name.
+// Modifies |file_name| in place. No-op if not on ChromeOS.
+BASE_I18N_EXPORT void NormalizeFileNameEncoding(FilePath* file_name);
+
 }  // namespace file_util
 
 #endif  // BASE_I18N_FILE_UTIL_ICU_H_