Componentize HistoryDatabase

chrome/browser/history/history_service.h

 // 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.
 
 #ifndef CHROME_BROWSER_HISTORY_HISTORY_SERVICE_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_SERVICE_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 44 matching lines @@
 
 namespace visitedlink {
 class VisitedLinkMaster;
 }
 
 namespace history {
 
 class HistoryBackend;
 class HistoryClient;
 class HistoryDatabase;
+struct HistoryDatabaseParams;
 class HistoryDBTask;
 class HistoryQueryTest;
 class HistoryServiceObserver;
 class HistoryTest;
 class InMemoryHistoryBackend;
 class InMemoryURLIndex;
 class InMemoryURLIndexTest;
 class URLDatabase;
 class VisitFilter;
 struct DownloadRow;
@@ skipping 20 matching lines @@
   // must be valid for the whole lifetime of |HistoryService|.
   explicit HistoryService(history::HistoryClient* client, Profile* profile);
   // The empty constructor is provided only for testing.
   HistoryService();
 
   ~HistoryService() override;
 
   // Initializes the history service, returning true on success. On false, do
   // not call any other functions. The given directory will be used for storing
   // the history files.
-  bool Init(const base::FilePath& history_dir) {
-    return Init(history_dir, false);
+  bool Init(const history::HistoryDatabaseParams& history_database_params) {
+    return Init(false, history_database_params);
   }
 
   // Triggers the backend to load if it hasn't already, and then returns whether
   // it's finished loading.
   // Note: Virtual needed for mocking.
   virtual bool BackendLoaded();
 
   // Returns true if the backend has finished loading.
   bool backend_loaded() const { return backend_loaded_; }
 
@@ skipping 442 matching lines @@
   // Implementation of content::NotificationObserver.
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
   // Implementation of visitedlink::VisitedLinkDelegate.
   void RebuildTable(const scoped_refptr<URLEnumerator>& enumerator) override;
 
   // Low-level Init().  Same as the public version, but adds a |no_db| parameter
   // that is only set by unittests which causes the backend to not init its DB.
-  bool Init(const base::FilePath& history_dir, bool no_db);
+  bool Init(bool no_db,
+            const history::HistoryDatabaseParams& history_database_params);
 
   // Called by the HistoryURLProvider class to schedule an autocomplete, it
   // will be called back on the internal history thread with the history
   // database so it can query. See history_autocomplete.cc for a diagram.
   void ScheduleAutocomplete(const base::Callback<
       void(history::HistoryBackend*, history::URLDatabase*)>& callback);
 
   // Broadcasts the given notification. This is called by the backend so that
   // the notification will be broadcast on the main thread.
   void BroadcastNotificationsHelper(
@@ skipping 333 matching lines @@
 
   history::DeleteDirectiveHandler delete_directive_handler_;
 
   // All vended weak pointers are invalidated in Cleanup().
   base::WeakPtrFactory<HistoryService> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryService);
 };
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_SERVICE_H_