Move base to DEPS

base/strings/utf_string_conversion_utils.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_STRINGS_UTF_STRING_CONVERSION_UTILS_H_
-#define BASE_STRINGS_UTF_STRING_CONVERSION_UTILS_H_
-
-// This should only be used by the various UTF string conversion files.
-
-#include "base/base_export.h"
-#include "base/strings/string16.h"
-
-namespace base {
-
-inline bool IsValidCodepoint(uint32 code_point) {
-  // Excludes the surrogate code points ([0xD800, 0xDFFF]) and
-  // codepoints larger than 0x10FFFF (the highest codepoint allowed).
-  // Non-characters and unassigned codepoints are allowed.
-  return code_point < 0xD800u ||
-         (code_point >= 0xE000u && code_point <= 0x10FFFFu);
-}
-
-inline bool IsValidCharacter(uint32 code_point) {
-  // Excludes non-characters (U+FDD0..U+FDEF, and all codepoints ending in
-  // 0xFFFE or 0xFFFF) from the set of valid code points.
-  return code_point < 0xD800u || (code_point >= 0xE000u &&
-      code_point < 0xFDD0u) || (code_point > 0xFDEFu &&
-      code_point <= 0x10FFFFu && (code_point & 0xFFFEu) != 0xFFFEu);
-}
-
-// ReadUnicodeCharacter --------------------------------------------------------
-
-// Reads a UTF-8 stream, placing the next code point into the given output
-// |*code_point|. |src| represents the entire string to read, and |*char_index|
-// is the character offset within the string to start reading at. |*char_index|
-// will be updated to index the last character read, such that incrementing it
-// (as in a for loop) will take the reader to the next character.
-//
-// Returns true on success. On false, |*code_point| will be invalid.
-BASE_EXPORT bool ReadUnicodeCharacter(const char* src,
-                                      int32 src_len,
-                                      int32* char_index,
-                                      uint32* code_point_out);
-
-// Reads a UTF-16 character. The usage is the same as the 8-bit version above.
-BASE_EXPORT bool ReadUnicodeCharacter(const char16* src,
-                                      int32 src_len,
-                                      int32* char_index,
-                                      uint32* code_point);
-
-#if defined(WCHAR_T_IS_UTF32)
-// Reads UTF-32 character. The usage is the same as the 8-bit version above.
-BASE_EXPORT bool ReadUnicodeCharacter(const wchar_t* src,
-                                      int32 src_len,
-                                      int32* char_index,
-                                      uint32* code_point);
-#endif  // defined(WCHAR_T_IS_UTF32)
-
-// WriteUnicodeCharacter -------------------------------------------------------
-
-// Appends a UTF-8 character to the given 8-bit string.  Returns the number of
-// bytes written.
-// TODO(brettw) Bug 79631: This function should not be exposed.
-BASE_EXPORT size_t WriteUnicodeCharacter(uint32 code_point,
-                                         std::string* output);
-
-// Appends the given code point as a UTF-16 character to the given 16-bit
-// string.  Returns the number of 16-bit values written.
-BASE_EXPORT size_t WriteUnicodeCharacter(uint32 code_point, string16* output);
-
-#if defined(WCHAR_T_IS_UTF32)
-// Appends the given UTF-32 character to the given 32-bit string.  Returns the
-// number of 32-bit values written.
-inline size_t WriteUnicodeCharacter(uint32 code_point, std::wstring* output) {
-  // This is the easy case, just append the character.
-  output->push_back(code_point);
-  return 1;
-}
-#endif  // defined(WCHAR_T_IS_UTF32)
-
-// Generalized Unicode converter -----------------------------------------------
-
-// Guesses the length of the output in UTF-8 in bytes, clears that output
-// string, and reserves that amount of space.  We assume that the input
-// character types are unsigned, which will be true for UTF-16 and -32 on our
-// systems.
-template<typename CHAR>
-void PrepareForUTF8Output(const CHAR* src, size_t src_len, std::string* output);
-
-// Prepares an output buffer (containing either UTF-16 or -32 data) given some
-// UTF-8 input that will be converted to it.  See PrepareForUTF8Output().
-template<typename STRING>
-void PrepareForUTF16Or32Output(const char* src, size_t src_len, STRING* output);
-
-}  // namespace base
-
-#endif  // BASE_STRINGS_UTF_STRING_CONVERSION_UTILS_H_