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

chrome/browser/safe_browsing/database_manager.h

Index: chrome/browser/safe_browsing/database_manager.h
diff --git a/chrome/browser/safe_browsing/database_manager.h b/chrome/browser/safe_browsing/database_manager.h
index ed17f5af1a60ffba0daf6c158618f644364fdbd2..43147b4fd9b8de5b4e9f3a4f37f06ad5c1b11306 100644
--- a/chrome/browser/safe_browsing/database_manager.h
+++ b/chrome/browser/safe_browsing/database_manager.h
@@ -177,6 +177,11 @@ class SafeBrowsingDatabaseManager
   // 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);