SafeBrowsing: Move enabled_ to base class DB Manager

components/safe_browsing_db/v4_local_database_manager.cc

 // Copyright 2016 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.
 
 // This file should not be build on Android but is currently getting built.
 // TODO(vakh): Fix that: http://crbug.com/621647
 
 #include "components/safe_browsing_db/v4_local_database_manager.h"
 
 #include <vector>
@@ skipping 120 matching lines @@
     const base::FilePath& base_path) {
   if (!V4FeatureList::IsLocalDatabaseManagerEnabled()) {
     return nullptr;
   }
 
   return make_scoped_refptr(new V4LocalDatabaseManager(base_path));
 }
 
 V4LocalDatabaseManager::V4LocalDatabaseManager(const base::FilePath& base_path)
     : base_path_(base_path),
-      enabled_(false),
       list_infos_(GetListInfos()),
       weak_factory_(this) {
   DCHECK(!base_path_.empty());
   DCHECK(!list_infos_.empty());
 
   DVLOG(1) << "V4LocalDatabaseManager::V4LocalDatabaseManager: "
            << "base_path_: " << base_path_.AsUTF8Unsafe();
 }
 
 V4LocalDatabaseManager::~V4LocalDatabaseManager() {
@@ skipping 209 matching lines @@
 void V4LocalDatabaseManager::StartOnIOThread(
     net::URLRequestContextGetter* request_context_getter,
     const V4ProtocolConfig& config) {
   SafeBrowsingDatabaseManager::StartOnIOThread(request_context_getter, config);
 
   db_updated_callback_ = base::Bind(&V4LocalDatabaseManager::DatabaseUpdated,
                                     weak_factory_.GetWeakPtr());
 
   SetupUpdateProtocolManager(request_context_getter, config);
   SetupDatabase();
-
-  enabled_ = true;
 }
 
 void V4LocalDatabaseManager::StopOnIOThread(bool shutdown) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
-  enabled_ = false;
-
   pending_checks_.clear();
 
   RespondSafeToQueuedChecks();
 
   // Delete the V4Database. Any pending writes to disk are completed.
   // This operation happens on the task_runner on which v4_database_ operates
   // and doesn't block the IO thread.
   V4Database::Destroy(std::move(v4_database_));
 
   // Delete the V4UpdateProtocolManager.
@@ skipping 333 matching lines @@
                             db_updated_callback_);
 }
 
 bool V4LocalDatabaseManager::AreStoresAvailableNow(
     const StoresToCheck& stores_to_check) const {
   return enabled_ && v4_database_ &&
          v4_database_->AreStoresAvailable(stores_to_check);
 }
 
 }  // namespace safe_browsing