This CL integrates the new SafeBrowsing download service class

chrome/browser/safe_browsing/download_protection_service.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.
 //
 // Helper class which handles communication with the SafeBrowsing servers for
 // improved binary download protection.
 
 #ifndef CHROME_BROWSER_SAFE_BROWSING_DOWNLOAD_PROTECTION_SERVICE_H_
 #define CHROME_BROWSER_SAFE_BROWSING_DOWNLOAD_PROTECTION_SERVICE_H_
 #pragma once
@@ skipping 27 matching lines @@
   // tab URL redirect chain, ...
   struct DownloadInfo {
     FilePath local_file;
     std::vector<GURL> download_url_chain;
     GURL referrer_url;
     std::string sha256_hash;
     int64 total_bytes;
     bool user_initiated;
     DownloadInfo();
     ~DownloadInfo();
-
+    std::string DebugString() const;
     // Creates a DownloadInfo from a DownloadItem object.
     static DownloadInfo FromDownloadItem(const DownloadItem& item);
   };
 
   enum DownloadCheckResult {
     SAFE,
     DANGEROUS,
     // In the future we may introduce a third category which corresponds to
     // suspicious downloads that are not known to be malicious.
   };
@@ skipping 96 matching lines @@
   bool enabled_;
 
   // SignatureUtil object, may be overridden for testing.
   scoped_refptr<SignatureUtil> signature_util_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadProtectionService);
 };
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_DOWNLOAD_PROTECTION_SERVICE_H_