Add a killswitch for CSD malware IP match and report feature. Use a new killswitch whitelist URL wh…

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 ad1dd1e6cb5328c8fc557065267d586a058d6f04..5c57d6307c87d8fa3902958a28011e8644700ffe 100644
--- a/chrome/browser/safe_browsing/database_manager.h
+++ b/chrome/browser/safe_browsing/database_manager.h
@@ -172,6 +172,9 @@ class SafeBrowsingDatabaseManager
   // 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 MalwareKillSwitchOn();
+
   // Called on the IO thread to cancel a pending check if the result is no
   // longer needed.
   void CancelCheck(Client* client);