Add the ability to check the CSD Whitelist asynchronously, for PhishGuard.

components/safe_browsing_db/remote_database_manager.cc

 // Copyright 2015 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.
 
 #include "components/safe_browsing_db/remote_database_manager.h"
 
 #include <memory>
 #include <vector>
 
 #include "base/metrics/histogram_macros.h"
@@ skipping 240 matching lines @@
       base::Bind(&ClientRequest::OnRequestDoneWeak, req->GetWeakPtr()), url,
       {SB_THREAT_TYPE_SUBRESOURCE_FILTER});
 
   LogPendingChecks(current_requests_.size());
   current_requests_.push_back(req.release());
 
   // Defer the resource load.
   return false;
 }
 
+AsyncMatch RemoteSafeBrowsingDatabaseManager::CheckCsdWhitelistUrl(
+    const GURL& url,
+    Client* client) {
+  NOTREACHED();
+  return AsyncMatch::MATCH;
+}
+
 bool RemoteSafeBrowsingDatabaseManager::MatchCsdWhitelistUrl(const GURL& url) {
   NOTREACHED();
   return true;
 }
 
 bool RemoteSafeBrowsingDatabaseManager::MatchDownloadWhitelistString(
     const std::string& str) {
   NOTREACHED();
   return true;
 }
@@ skipping 58 matching lines @@
   for (auto* req : to_callback) {
     DVLOG(1) << "Stopping: Invoking unfinished req for URL " << req->url();
     req->OnRequestDone(SB_THREAT_TYPE_SAFE, ThreatMetadata());
   }
   enabled_ = false;
 
   SafeBrowsingDatabaseManager::StopOnIOThread(shutdown);
 }
 
 }  // namespace safe_browsing