Move RTL related functions from app/l10n_util to base/i18n/rtl...

base/file_path.h

 // Copyright (c) 2010 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 48 matching lines @@
 //
 // | const FilePath::CharType kLogFileName[] = FILE_PATH_LITERAL("log.txt");
 // |
 // | void Function() {
 // |   FilePath log_file_path(kLogFileName);
 // |   [...]
 // | }
 //
 // WARNING: FilePaths should ALWAYS be displayed with LTR directionality, even
 // when the UI language is RTL. This means you always need to pass filepaths
-// through l10n_util::WrapPathWithLTRFormatting() before displaying it in the
+// through base::i18n::WrapPathWithLTRFormatting() before displaying it in the
 // RTL UI.
 //
 // This is a very common source of bugs, please try to keep this in mind.
 //
 // ARCANE BITS OF PATH TRIVIA
 //
 //  - A double leading slash is actually part of the POSIX standard.  Systems
 //    are allowed to treat // as an alternate root, as Windows does for UNC
 //    (network share) paths.  Most POSIX systems don't do anything special
 //    with two leading slashes, but FilePath handles this case properly
@@ skipping 292 matching lines @@
 namespace stdext {
 
 inline size_t hash_value(const FilePath& f) {
   return hash_value(f.value());
 }
 
 }  // namespace stdext
 #endif  // COMPILER
 
 #endif  // BASE_FILE_PATH_H_