Prettify output from chrome.fileSystem.getDisplayPath for POSIX profile directories

base/file_util_posix.cc

 // 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.
 
 #include "base/file_util.h"
 
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <fnmatch.h>
@@ skipping 1067 matching lines @@
     } while (bytes_written_per_read < bytes_read);
   }
 
   if (HANDLE_EINTR(close(infile)) < 0)
     result = false;
   if (HANDLE_EINTR(close(outfile)) < 0)
     result = false;
 
   return result;
 }
-#endif  // defined(OS_MACOSX)
+#endif  // !defined(OS_MACOSX)
 
 bool VerifyPathControlledByUser(const FilePath& base,
                                 const FilePath& path,
                                 uid_t owner_uid,
                                 const std::set<gid_t>& group_gids) {
   if (base != path && !base.IsParent(path)) {
      DLOG(ERROR) << "|base| must be a subdirectory of |path|.  base = \""
                  << base.value() << "\", path = \"" << path.value() << "\"";
      return false;
   }
@@ skipping 52 matching lines @@
 
     allowed_group_ids.insert(group_record->gr_gid);
   }
 
   return VerifyPathControlledByUser(
       kFileSystemRoot, path, kRootUid, allowed_group_ids);
 }
 #endif  // defined(OS_MACOSX)
 
 }  // namespace file_util