Some additions to support symlinks better on platforms that support them.

base/platform_file_posix.cc

 // Copyright (c) 2009 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/platform_file.h"
 
 #include <fcntl.h>
 #include <errno.h>
 #include <sys/stat.h>
 
@@ skipping 169 matching lines @@
 
 bool GetPlatformFileInfo(PlatformFile file, PlatformFileInfo* info) {
   if (!info)
     return false;
 
   stat_wrapper_t file_info;
   if (CallFstat(file, &file_info))
     return false;
 
   info->is_directory = S_ISDIR(file_info.st_mode);
+  info->is_symbolic_link = S_ISLNK(file_info.st_mode);
   info->size = file_info.st_size;
   info->last_modified = base::Time::FromTimeT(file_info.st_mtime);
   info->last_accessed = base::Time::FromTimeT(file_info.st_atime);
   info->creation_time = base::Time::FromTimeT(file_info.st_ctime);
   return true;
 }
 
 }  // namespace base