Make base::IsUnicodeWhitespace('\0') return false.

base/strings/string_util.h

 // 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.
 //
 // This file defines utility functions for working with strings.
 
 #ifndef BASE_STRINGS_STRING_UTIL_H_
 #define BASE_STRINGS_STRING_UTIL_H_
 
 #include <ctype.h>
@@ skipping 340 matching lines @@
 }
 
 // Returns the integer corresponding to the given hex character. For example:
 //    '4' -> 4
 //    'a' -> 10
 //    'B' -> 11
 // Assumes the input is a valid hex character. DCHECKs in debug builds if not.
 BASE_EXPORT char HexDigitToInt(wchar_t c);
 
 // Returns true if it's a Unicode whitespace character.
-inline bool IsUnicodeWhitespace(wchar_t c) {
-  return wcschr(base::kWhitespaceWide, c) != NULL;
-}
+BASE_EXPORT bool IsUnicodeWhitespace(wchar_t c);
 
 // Return a byte string in human-readable format with a unit suffix. Not
 // appropriate for use in any UI; use of FormatBytes and friends in ui/base is
 // highly recommended instead. TODO(avi): Figure out how to get callers to use
 // FormatBytes instead; remove this.
 BASE_EXPORT string16 FormatBytesUnlocalized(int64 bytes);
 
 // Starting at |start_offset| (usually 0), replace the first instance of
 // |find_this| with |replace_with|.
 BASE_EXPORT void ReplaceFirstSubstringAfterOffset(
@@ skipping 79 matching lines @@
 
 #if defined(OS_WIN)
 #include "base/strings/string_util_win.h"
 #elif defined(OS_POSIX)
 #include "base/strings/string_util_posix.h"
 #else
 #error Define string operations appropriately for your platform
 #endif
 
 #endif  // BASE_STRINGS_STRING_UTIL_H_