Deprecate GetDirectoryFromPath on non-Windows.

base/file_util.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.
 
 // This file contains utility functions for dealing with the local
 // filesystem.
 
 #ifndef BASE_FILE_UTIL_H_
 #define BASE_FILE_UTIL_H_
 
@@ skipping 31 matching lines @@
 //-----------------------------------------------------------------------------
 // Functions that operate purely on a path string w/o touching the filesystem:
 
 // Returns true if the given path ends with a path separator character.
 bool EndsWithSeparator(const FilePath& path);
 
 // Makes sure that |path| ends with a separator IFF path is a directory that
 // exists. Returns true if |path| is an existing directory, false otherwise.
 bool EnsureEndsWithSeparator(FilePath* path);
 
-// Returns the directory component of a path, without the trailing
-// path separator, or an empty string on error. The function does not
-// check for the existence of the path, so if it is passed a directory
-// without the trailing \, it will interpret the last component of the
-// path as a file and chomp it. This does not support relative paths.
-// Examples:
-// path == "C:\pics\jojo.jpg",     returns "C:\pics"
-// path == "C:\Windows\system32\", returns "C:\Windows\system32"
-// path == "C:\Windows\system32",  returns "C:\Windows"
-std::wstring GetDirectoryFromPath(const std::wstring& path);
-
 // Appends new_ending to path, adding a separator between the two if necessary.
 void AppendToPath(std::wstring* path, const std::wstring& new_ending);
 
 // Convert provided relative path into an absolute path.  Returns false on
 // error. On POSIX, this function fails if the path does not exist.
 bool AbsolutePath(FilePath* path);
 
 // Returns true if |parent| contains |child|. Both paths are converted to
 // absolute paths before doing the comparison.
 bool ContainsPath(const FilePath& parent, const FilePath& child);
@@ skipping 436 matching lines @@
 bool HasFileBeenModifiedSince(const FileEnumerator::FindInfo& find_info,
                               const base::Time& cutoff_time);
 
 }  // namespace file_util
 
 // Deprecated functions have been moved to this separate header file,
 // which must be included last after all the above definitions.
 #include "base/file_util_deprecated.h"
 
 #endif  // BASE_FILE_UTIL_H_