Componentize HistoryDatabase

chrome/browser/history/history_backend.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_BACKEND_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/containers/mru_cache.h"
 #include "base/files/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/memory_pressure_listener.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "base/single_thread_task_runner.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "chrome/browser/history/expire_history_backend.h"
-#include "chrome/browser/history/history_database.h"
 #include "components/history/core/browser/history_backend_notifier.h"
 #include "components/history/core/browser/history_types.h"
 #include "components/history/core/browser/keyword_id.h"
 #include "components/history/core/browser/thumbnail_database.h"
 #include "components/history/core/browser/visit_tracker.h"
 #include "components/visitedlink/browser/visitedlink_delegate.h"
 #include "sql/init_status.h"
 
 #if defined(OS_ANDROID)
-#include "components/history/core/android/android_history_types.h"
+#include "components/history/core/browser/android/android_history_types.h"
 #endif
 
 class HistoryURLProvider;
 struct HistoryURLProviderParams;
 struct ImportedFaviconUsage;
 class SkBitmap;
 class TestingProfile;
 struct ThumbnailScore;
 
 namespace base {
 class MessageLoop;
 class SingleThreadTaskRunner;
 }
 
 namespace history {
 #if defined(OS_ANDROID)
 class AndroidProviderBackend;
 #endif
 
 class CommitLaterTask;
 struct DownloadRow;
 class HistoryBackendObserver;
 class HistoryClient;
+class HistoryDatabase;
+struct HistoryDatabaseParams;
 struct HistoryDetails;
 class HistoryDBTask;
 class InMemoryHistoryBackend;
 class TypedUrlSyncableService;
 class VisitFilter;
 
 // The maximum number of icons URLs per page which can be stored in the
 // thumbnail database.
 static const size_t kMaxFaviconsPerPage = 8;
 
@@ skipping 111 matching lines @@
                  Delegate* delegate,
                  HistoryClient* history_client);
 
   // Must be called after creation but before any objects are created. If this
   // fails, all other functions will fail as well. (Since this runs on another
   // thread, we don't bother returning failure.)
   //
   // |languages| gives a list of language encodings with which the history
   // URLs and omnibox searches are interpreted.
   // |force_fail| can be set during unittests to unconditionally fail to init.
-  void Init(const std::string& languages, bool force_fail);
+  void Init(const std::string& languages,
+            bool force_fail,
+            const HistoryDatabaseParams& history_database_params);
 
   // Notification that the history system is shutting down. This will break
   // the refs owned by the delegate and any pending transaction so it will
   // actually be deleted.
   void Closing();
 
   void ClearCachedDataForContextID(ContextID context_id);
 
   // Navigation ----------------------------------------------------------------
 
@@ skipping 404 matching lines @@
 
 #if defined(OS_ANDROID)
   // Returns the name of android cache database.
   base::FilePath GetAndroidCacheFileName() const;
 #endif
 
   class URLQuerier;
   friend class URLQuerier;
 
   // Does the work of Init.
-  void InitImpl(const std::string& languages);
+  void InitImpl(const std::string& languages,
+                const HistoryDatabaseParams& history_database_params);
 
   // Called when the system is under memory pressure.
   void OnMemoryPressure(
       base::MemoryPressureListener::MemoryPressureLevel memory_pressure_level);
 
   // Closes all databases managed by HistoryBackend. Commits any pending
   // transactions.
   void CloseAllDatabases();
 
   // Adds a single visit to the database, updating the URL information such
@@ skipping 294 matching lines @@
 
   // List of observers
   ObserverList<HistoryBackendObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryBackend);
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_