base: Remove deprecated CaseInsensitiveCompareDeprecated struct.

base/strings/string_util.cc

 // Copyright 2013 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.
 
 #include "base/strings/string_util.h"
 
 #include <ctype.h>
 #include <errno.h>
 #include <math.h>
 #include <stdarg.h>
@@ skipping 81 matching lines @@
 };
 #if defined(WCHAR_T_IS_UTF32)
 template<> struct NonASCIIMask<4, wchar_t> {
     static inline uint32_t value() { return 0xFFFFFF80U; }
 };
 template<> struct NonASCIIMask<8, wchar_t> {
     static inline uint64_t value() { return 0xFFFFFF80FFFFFF80ULL; }
 };
 #endif  // WCHAR_T_IS_UTF32
 
-// DO NOT USE. http://crbug.com/24917
-//
-// tolower() will given incorrect results for non-ASCII characters. Use the
-// ASCII version, base::i18n::ToLower, or base::i18n::FoldCase. This is here
-// for backwards-compat for StartsWith until such calls can be updated.
-struct CaseInsensitiveCompareDeprecated {
- public:
-  bool operator()(char16 x, char16 y) const {
-    return tolower(x) == tolower(y);
-  }
-};
-
 }  // namespace
 
 bool IsWprintfFormatPortable(const wchar_t* format) {
   for (const wchar_t* position = format; *position != '\0'; ++position) {
     if (*position == '%') {
       bool in_specification = true;
       bool modifier_l = false;
       while (in_specification) {
         // Eat up characters until reaching a known specifier.
         if (*++position == '\0') {
@@ skipping 885 matching lines @@
 }  // namespace
 
 size_t strlcpy(char* dst, const char* src, size_t dst_size) {
   return lcpyT<char>(dst, src, dst_size);
 }
 size_t wcslcpy(wchar_t* dst, const wchar_t* src, size_t dst_size) {
   return lcpyT<wchar_t>(dst, src, dst_size);
 }
 
 }  // namespace base