chrome: Add out-of-line copy ctors for complex classes.

chrome/common/safe_browsing/zip_analyzer_results.h

 // Copyright 2015 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 the zip file analysis implementation for download
 // protection, which runs in a sandboxed utility process.
 
 #ifndef CHROME_COMMON_SAFE_BROWSING_ZIP_ANALYZER_RESULTS_H_
 #define CHROME_COMMON_SAFE_BROWSING_ZIP_ANALYZER_RESULTS_H_
 
 #include <vector>
 
 #include "base/files/file_path.h"
 #include "chrome/common/safe_browsing/csd.pb.h"
 
 namespace safe_browsing {
 namespace zip_analyzer {
 
 struct Results {
   bool success;
   bool has_executable;
   bool has_archive;
   google::protobuf::RepeatedPtrField<ClientDownloadRequest_ArchivedBinary>
       archived_binary;
   std::vector<base::FilePath> archived_archive_filenames;
   Results();
+  Results(const Results& other);
   ~Results();
 };
 
 }  // namespace zip_analyzer
 }  // namespace safe_browsing
 
 #endif  // CHROME_COMMON_SAFE_BROWSING_ZIP_ANALYZER_RESULTS_H_