Eliminate resource leaks from zip::ZipFiles and

third_party/zlib/google/zip.h

 // Copyright (c) 2011 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.
 
 #ifndef THIRD_PARTY_ZLIB_GOOGLE_ZIP_H_
 #define THIRD_PARTY_ZLIB_GOOGLE_ZIP_H_
 
 #include <vector>
 
 #include "base/callback.h"
@@ skipping 12 matching lines @@
                            const FilterCallback& filter_cb);
 
 // Convenience method for callers who don't need to set up the filter callback.
 // If |include_hidden_files| is true, files starting with "." are included.
 // Otherwise they are omitted.
 bool Zip(const base::FilePath& src_dir, const base::FilePath& dest_file,
          bool include_hidden_files);
 
 #if defined(OS_POSIX)
 // Zips files listed in |src_relative_paths| to destination specified by file
-// descriptor |dest_fd|. The paths listed in |src_relative_paths| are relative
-// to the |src_dir| and will be used as the file names in the created zip file.
-// All source paths must be under |src_dir| in the file system hierarchy.
+// descriptor |dest_fd|, without taking ownership of |dest_fd|. The paths listed
+// in |src_relative_paths| are relative to the |src_dir| and will be used as the
+// file names in the created zip file. All source paths must be under |src_dir|
+// in the file system hierarchy.
 bool ZipFiles(const base::FilePath& src_dir,
               const std::vector<base::FilePath>& src_relative_paths,
               int dest_fd);
 #endif  // defined(OS_POSIX)
 
 // Unzip the contents of zip_file into dest_dir.
 bool Unzip(const base::FilePath& zip_file, const base::FilePath& dest_dir);
 
 }  // namespace zip
 
 #endif  // THIRD_PARTY_ZLIB_GOOGLE_ZIP_H_