Move base to DEPS

base/i18n/case_conversion.h

-// Copyright (c) 2011 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.
-
-#ifndef BASE_I18N_CASE_CONVERSION_H_
-#define BASE_I18N_CASE_CONVERSION_H_
-
-#include "base/i18n/base_i18n_export.h"
-#include "base/strings/string16.h"
-#include "base/strings/string_piece.h"
-
-namespace base {
-namespace i18n {
-
-// UNICODE CASE-HANDLING ADVICE
-//
-// In English it's always safe to convert to upper-case or lower-case text
-// and get a good answer. But some languages have rules specific to those
-// locales. One example is the Turkish I:
-//   http://www.i18nguy.com/unicode/turkish-i18n.html
-//
-// ToLower/ToUpper use the current ICU locale which will take into account
-// the user language preference. Use this when dealing with user typing.
-//
-// FoldCase canonicalizes to a standardized form independent of the current
-// locale. Use this when comparing general Unicode strings that don't
-// necessarily belong in the user's current locale (like commands, protocol
-// names, other strings from the web) for case-insensitive equality.
-//
-// Note that case conversions will change the length of the string in some
-// not-uncommon cases. Never assume that the output is the same length as
-// the input.
-
-// Returns the lower case equivalent of string. Uses ICU's current locale.
-BASE_I18N_EXPORT string16 ToLower(StringPiece16 string);
-
-// Returns the upper case equivalent of string. Uses ICU's current locale.
-BASE_I18N_EXPORT string16 ToUpper(StringPiece16 string);
-
-// Convert the given string to a canonical case, independent of the current
-// locale. For ASCII the canonical form is lower case.
-// See http://unicode.org/faq/casemap_charprop.html#2
-BASE_I18N_EXPORT string16 FoldCase(StringPiece16 string);
-
-}  // namespace i18n
-}  // namespace base
-
-#endif  // BASE_I18N_CASE_CONVERSION_H_