Deprecate GetDirectoryFromPath on non-Windows.

base/file_util_posix.cc

 // 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.
 
 #include "base/file_util.h"
 
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <fnmatch.h>
@@ skipping 42 matching lines @@
 }
 #endif
 
 
 #if defined(GOOGLE_CHROME_BUILD)
 static const char* kTempFileName = "com.google.chrome.XXXXXX";
 #else
 static const char* kTempFileName = "org.chromium.XXXXXX";
 #endif
 
-std::wstring GetDirectoryFromPath(const std::wstring& path) {
-  if (EndsWithSeparator(path)) {
-    return FilePath::FromWStringHack(path)
-        .StripTrailingSeparators()
-        .ToWStringHack();
-  } else {
-    char full_path[PATH_MAX];
-    base::strlcpy(full_path, WideToUTF8(path).c_str(), arraysize(full_path));
-    return UTF8ToWide(dirname(full_path));
-  }
-}
-
 bool AbsolutePath(FilePath* path) {
   char full_path[PATH_MAX];
   if (realpath(path->value().c_str(), full_path) == NULL)
     return false;
   *path = FilePath(full_path);
   return true;
 }
 
 int CountFilesCreatedAfter(const FilePath& path,
                            const base::Time& comparison_time) {
@@ skipping 628 matching lines @@
   length_ = 0;
   file_ = base::kInvalidPlatformFileValue;
 }
 
 bool HasFileBeenModifiedSince(const FileEnumerator::FindInfo& find_info,
                               const base::Time& cutoff_time) {
   return find_info.stat.st_mtime >= cutoff_time.ToTimeT();
 }
 
 } // namespace file_util