Persist declarative rules to the extension state store.

chrome/browser/extensions/api/declarative_webrequest/webrequest_rules_registry.cc

 // Copyright (c) 2012 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 "chrome/browser/extensions/api/declarative_webrequest/webrequest_rules_registry.h"
 
 #include <limits>
 
 #include "chrome/browser/extensions/api/declarative_webrequest/webrequest_condition.h"
 #include "chrome/browser/extensions/api/web_request/web_request_api_helpers.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "net/url_request/url_request.h"
 
 namespace extensions {
 
-WebRequestRulesRegistry::WebRequestRulesRegistry(Profile* profile) {
+WebRequestRulesRegistry::WebRequestRulesRegistry(Profile* profile,
+                                                 Delegate* delegate)
+    : RulesRegistryWithCache(delegate) {
   if (profile)
     extension_info_map_ = ExtensionSystem::Get(profile)->info_map();
 }
 
 std::set<WebRequestRule::GlobalRuleId>
 WebRequestRulesRegistry::GetMatches(net::URLRequest* request,
                                     RequestStages request_stage) {
   std::set<WebRequestRule::GlobalRuleId> result;
 
   // Figure out for which rules the URL match conditions were fulfilled.
@@ skipping 197 matching lines @@
 
 base::Time WebRequestRulesRegistry::GetExtensionInstallationTime(
     const std::string& extension_id) const {
   if (!extension_info_map_.get())  // May be NULL during testing.
     return base::Time();
 
   return extension_info_map_->GetInstallTime(extension_id);
 }
 
 }  // namespace extensions