Enable V4LocalDatabaseManager based on Finch.

chrome/browser/safe_browsing/services_delegate_impl.h

 // 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.
 
 #ifndef CHROME_BROWSER_SAFE_BROWSING_SERVICES_DELEGATE_IMPL_H_
 #define CHROME_BROWSER_SAFE_BROWSING_SERVICES_DELEGATE_IMPL_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "chrome/browser/safe_browsing/client_side_detection_service.h"
 #include "chrome/browser/safe_browsing/download_protection_service.h"
 #include "chrome/browser/safe_browsing/incident_reporting/incident_reporting_service.h"
 #include "chrome/browser/safe_browsing/incident_reporting/resource_request_detector.h"
 #include "chrome/browser/safe_browsing/services_delegate.h"
 
 namespace safe_browsing {
 
+class V4LocalDatabaseManager;
+
 // Actual ServicesDelegate implementation. Create via
 // ServicesDelegate::Create().
 class ServicesDelegateImpl : public ServicesDelegate {
  public:
   ServicesDelegateImpl(SafeBrowsingService* safe_browsing_service,
                        ServicesDelegate::ServicesCreator* services_creator);
   ~ServicesDelegateImpl() override;
 
  private:
   // ServicesDelegate:
+  void Initialize() override;
   void InitializeCsdService(
       net::URLRequestContextGetter* context_getter) override;
-  void InitializeServices() override;
   void ShutdownServices() override;
   void RefreshState(bool enable) override;
   void ProcessResourceRequest(const ResourceRequestInfo* request) override;
   std::unique_ptr<TrackedPreferenceValidationDelegate>
       CreatePreferenceValidationDelegate(Profile* profile) override;
   void RegisterDelayedAnalysisCallback(
       const DelayedAnalysisCallback& callback) override;
   void RegisterExtendedReportingOnlyDelayedAnalysisCallback(
       const DelayedAnalysisCallback& callback) override;
   void AddDownloadManager(content::DownloadManager* download_manager) override;
   ClientSideDetectionService* GetCsdService() override;
   DownloadProtectionService* GetDownloadService() override;
 
+  void StartOnIOThread(
+    net::URLRequestContextGetter* url_request_context_getter,
+    const V4ProtocolConfig& v4_config) override;
+  void StopOnIOThread(bool shutdown) override;
+
+  // Is the Pver4 database manager enabled? Controlled by Finch.
+  bool IsV4LocalDatabaseManagerEnabled();
+
+  V4LocalDatabaseManager* CreateV4LocalDatabaseManager();
+
   DownloadProtectionService* CreateDownloadProtectionService();
   IncidentReportingService* CreateIncidentReportingService();
   ResourceRequestDetector* CreateResourceRequestDetector();
 
   std::unique_ptr<ClientSideDetectionService> csd_service_;
   std::unique_ptr<DownloadProtectionService> download_service_;
   std::unique_ptr<IncidentReportingService> incident_service_;
   std::unique_ptr<ResourceRequestDetector> resource_request_detector_;
 
   SafeBrowsingService* const safe_browsing_service_;
   ServicesDelegate::ServicesCreator* const services_creator_;
 
+  // The Pver4 local database manager handles the database and download logic
+  // Accessed on both UI and IO thread.
+  scoped_refptr<V4LocalDatabaseManager> v4_local_database_manager_;
+
   DISALLOW_COPY_AND_ASSIGN(ServicesDelegateImpl);
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_SERVICES_DELEGATE_IMPL_H_