Preload the visited link db on the file thread.

chrome/browser/profile.h

 // Copyright (c) 2009 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 class gathers state related to a single user profile.
 
 #ifndef CHROME_BROWSER_PROFILE_H_
 #define CHROME_BROWSER_PROFILE_H_
 
 #include <set>
@@ skipping 46 matching lines @@
 class SSLHostState;
 class TransportSecurityPersister;
 class SQLitePersistentCookieStore;
 class TabRestoreService;
 class TemplateURLFetcher;
 class TemplateURLModel;
 class ThemeProvider;
 class ThumbnailStore;
 class URLRequestContextGetter;
 class UserScriptMaster;
+class VisitedLinkCreator;
 class VisitedLinkMaster;
-class VisitedLinkEventListener;
 class WebDataService;
 class WebKitContext;
 class WebResourceService;
 
 typedef intptr_t ProfileId;
 
 class Profile {
  public:
   // Profile services are accessed with the following parameter. This parameter
   // defines what the caller plans to do with the service.
@@ skipping 62 matching lines @@
   virtual Profile* GetOriginalProfile() = 0;
 
   // Returns a pointer to the DatabaseTracker instance for this profile.
   virtual webkit_database::DatabaseTracker* GetDatabaseTracker() = 0;
 
   // Retrieves a pointer to the VisitedLinkMaster associated with this
   // profile.  The VisitedLinkMaster is lazily created the first time
   // that this method is called.
   virtual VisitedLinkMaster* GetVisitedLinkMaster() = 0;
 
+  // Loads the visited link master on the file thread.  It's safe to call
+  // GetVisitedLinkMaster without calling this in advance.
+  virtual void PreloadVisitedLinkMaster() = 0;
+
   // Retrieves a pointer to the ExtensionsService associated with this
   // profile. The ExtensionsService is created at startup.
   virtual ExtensionsService* GetExtensionsService() = 0;
 
   // Retrieves a pointer to the UserScriptMaster associated with this
   // profile.  The UserScriptMaster is lazily created the first time
   // that this method is called.
   virtual UserScriptMaster* GetUserScriptMaster() = 0;
 
   // Retrieves a pointer to the ExtensionDevToolsManager associated with this
@@ skipping 238 matching lines @@
 
   // Profile implementation.
   virtual ProfileId GetRuntimeId();
   virtual FilePath GetPath();
   virtual bool IsOffTheRecord();
   virtual Profile* GetOffTheRecordProfile();
   virtual void DestroyOffTheRecordProfile();
   virtual Profile* GetOriginalProfile();
   virtual webkit_database::DatabaseTracker* GetDatabaseTracker();
   virtual VisitedLinkMaster* GetVisitedLinkMaster();
+  virtual void PreloadVisitedLinkMaster();
   virtual UserScriptMaster* GetUserScriptMaster();
   virtual SSLHostState* GetSSLHostState();
   virtual net::TransportSecurityState* GetTransportSecurityState();
   virtual ExtensionsService* GetExtensionsService();
   virtual ExtensionDevToolsManager* GetExtensionDevToolsManager();
   virtual ExtensionProcessManager* GetExtensionProcessManager();
   virtual ExtensionMessageService* GetExtensionMessageService();
   virtual FaviconService* GetFaviconService(ServiceAccessType sat);
   virtual HistoryService* GetHistoryService(ServiceAccessType sat);
   virtual HistoryService* GetHistoryServiceWithoutCreating();
@@ skipping 65 matching lines @@
   }
 
   void EnsureSessionServiceCreated() {
     GetSessionService();
   }
 
   NotificationRegistrar registrar_;
 
   FilePath path_;
   FilePath base_cache_path_;
-  scoped_ptr<VisitedLinkEventListener> visited_link_event_listener_;
-  scoped_ptr<VisitedLinkMaster> visited_link_master_;
+  scoped_refptr<VisitedLinkCreator> visited_link_creator_;
   scoped_refptr<ExtensionsService> extensions_service_;
   scoped_refptr<UserScriptMaster> user_script_master_;
   scoped_refptr<ExtensionDevToolsManager> extension_devtools_manager_;
   scoped_ptr<ExtensionProcessManager> extension_process_manager_;
   scoped_refptr<ExtensionMessageService> extension_message_service_;
   scoped_ptr<SSLHostState> ssl_host_state_;
   scoped_refptr<net::TransportSecurityState>
       transport_security_state_;
   scoped_refptr<TransportSecurityPersister>
       transport_security_persister_;
@@ skipping 62 matching lines @@
   scoped_refptr<webkit_database::DatabaseTracker> db_tracker_;
 
 #if defined(OS_CHROMEOS)
   chromeos::Preferences chromeos_preferences_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(ProfileImpl);
 };
 
 #endif  // CHROME_BROWSER_PROFILE_H_