split file path constants out for split link

base/files/file_path.h

 // Copyright (c) 2012 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.
 
 // FilePath is a container for pathnames stored in a platform's native string
 // type, providing containers for manipulation in according with the
 // platform's conventions for pathnames.  It supports the following path
 // types:
 //
 //                   POSIX            Windows
@@ skipping 132 matching lines @@
 #endif  // OS_WIN
 
   typedef StringType::value_type CharType;
 
   // Null-terminated array of separators used to separate components in
   // hierarchical paths.  Each character in this array is a valid separator,
   // but kSeparators[0] is treated as the canonical separator and will be used
   // when composing pathnames.
   static const CharType kSeparators[];
 
+  // arraysize(kSeparators).
+  static const size_t kSeparatorsLength;
+
   // A special path component meaning "this directory."
   static const CharType kCurrentDirectory[];
 
   // A special path component meaning "the parent directory."
   static const CharType kParentDirectory[];
 
   // The character used to identify a file extension.
   static const CharType kExtensionSeparator;
 
   FilePath();
@@ skipping 277 matching lines @@
 
 inline size_t hash_value(const base::FilePath& f) {
   return hash_value(f.value());
 }
 
 #endif  // COMPILER
 
 }  // namespace BASE_HASH_NAMESPACE
 
 #endif  // BASE_FILES_FILE_PATH_H_