Mostly integrate new malware IP blacklist with the csd client. When

chrome/browser/safe_browsing/database_manager.h

 // 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.
 //
 // The Safe Browsing service is responsible for downloading anti-phishing and
 // anti-malware tables and checking urls against them.
 
 #ifndef CHROME_BROWSER_SAFE_BROWSING_DATABASE_MANAGER_H_
 #define CHROME_BROWSER_SAFE_BROWSING_DATABASE_MANAGER_H_
 
@@ skipping 159 matching lines @@
 
   // Check if |str| matches any of the full-length hashes from the download
   // whitelist.  Returns true if there was a match and false otherwise.
   // To make sure we are conservative we will return true if an error occurs.
   // This method is expected to be called on the IO thread.
   virtual bool MatchDownloadWhitelistString(const std::string& str);
 
   // Check if the CSD malware IP matching kill switch is turned on.
   virtual bool IsMalwareKillSwitchOn();
 
+  // Check if the given IP address (either IPv4 or IPv6) matches the malware
+  // IP blacklist.
+  // This method is expected to be called on the IO thread.
+  virtual bool MatchMalwareIP(const std::string& ip_address);
+
   // Called on the IO thread to cancel a pending check if the result is no
   // longer needed.
   void CancelCheck(Client* client);
 
   // Called on the IO thread when the SafeBrowsingProtocolManager has received
   // the full hash results for prefix hits detected in the database.
   void HandleGetHashResults(
       SafeBrowsingCheck* check,
       const std::vector<SBFullHashResult>& full_hashes,
       bool can_cache);
@@ skipping 222 matching lines @@
 
   std::deque<QueuedCheck> queued_checks_;
 
   // Timeout to use for safe browsing checks.
   base::TimeDelta check_timeout_;
 
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingDatabaseManager);
 };
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_DATABASE_MANAGER_H_