Revert of SafeBrowsing: DatabaseManager owns the V4GetHashProtocolManager

components/safe_browsing_db/remote_database_manager.h

Index: components/safe_browsing_db/remote_database_manager.h
diff --git a/components/safe_browsing_db/remote_database_manager.h b/components/safe_browsing_db/remote_database_manager.h
index 574386f8ea548080be410a8af97ae2fa9967cfa0..0234285d690d3f79a49ef69e364afb0b63af0b8a 100644
--- a/components/safe_browsing_db/remote_database_manager.h
+++ b/components/safe_browsing_db/remote_database_manager.h
@@ -18,26 +18,15 @@
 #include "components/safe_browsing_db/database_manager.h"
 #include "url/gurl.h"
 
-namespace net {
-class URLRequestContextGetter;
-}
-
 namespace safe_browsing {
-
-struct V4GetHashProtocolConfig;
 
 // An implementation that proxies requests to a service outside of Chromium.
 // Does not manage a local database.
 class RemoteSafeBrowsingDatabaseManager : public SafeBrowsingDatabaseManager {
  public:
-  // Use this constructor for testing only.
-  RemoteSafeBrowsingDatabaseManager();
-
   // Construct RemoteSafeBrowsingDatabaseManager.
   // Must be initialized by calling StartOnIOThread() before using.
-  RemoteSafeBrowsingDatabaseManager(
-      net::URLRequestContextGetter* request_context_getter,
-      const V4GetHashProtocolConfig& config);
+  RemoteSafeBrowsingDatabaseManager();
 
   //
   // SafeBrowsingDatabaseManager implementation