Fetch extension blacklist states from SafeBrowsing server

chrome/browser/extensions/fake_safe_browsing_database_manager.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_FAKE_SAFE_BROWSING_DATABASE_MANAGER_H_
 #define CHROME_BROWSER_EXTENSIONS_FAKE_SAFE_BROWSING_DATABASE_MANAGER_H_
 
 #include <set>
 #include <string>
 
@@ skipping 17 matching lines @@
 
   // Return |this| to chain together SetUnsafe(...).NotifyUpdate() conveniently.
   FakeSafeBrowsingDatabaseManager& Enable();
   FakeSafeBrowsingDatabaseManager& ClearUnsafe();
   FakeSafeBrowsingDatabaseManager& SetUnsafe(const std::string& a);
   FakeSafeBrowsingDatabaseManager& SetUnsafe(const std::string& a,
                                              const std::string& b);
   FakeSafeBrowsingDatabaseManager& SetUnsafe(const std::string& a,
                                              const std::string& b,
                                              const std::string& c);
+  FakeSafeBrowsingDatabaseManager& SetUnsafe(const std::string& a,
+                                             const std::string& b,
+                                             const std::string& c,
+                                             const std::string& d);
 
   // Send the update notification.
   void NotifyUpdate();
 
  private:
   virtual ~FakeSafeBrowsingDatabaseManager();
 
   // Runs client->SafeBrowsingResult(result).
   void OnSafeBrowsingResult(scoped_ptr<SafeBrowsingCheck> result,
                             Client* client);
 
   // Whether to respond to CheckExtensionIDs immediately with true (indicating
   // that there is definitely no extension ID match).
   bool enabled_;
 
   // The extension IDs considered unsafe.
   std::set<std::string> unsafe_ids_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_FAKE_SAFE_BROWSING_DATABASE_MANAGER_H_