chrome/browser/predictors componentization part-1

chrome/browser/predictors/predictor_database_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_PREDICTORS_PREDICTOR_DATABASE_SERVICE_H_
+#define CHROME_BROWSER_PREDICTORS_PREDICTOR_DATABASE_SERVICE_H_
+
+#include "base/memory/ref_counted.h"
+#include "chrome/browser/predictors/predictor_database.h"
+#include "chrome/browser/profiles/profile_keyed_service.h"
+
+class Profile;
+
+namespace predictors {
+
+// Maintains per-profile information about PredictorDatabase.
+class PredictorDatabaseService: public ProfileKeyedService {
+ public:
+  explicit PredictorDatabaseService(Profile* profile);
+  virtual ~PredictorDatabaseService();
+
+  scoped_refptr<PredictorDatabase> GetDatabase() const {
+    return db_;
+  }
+
+ private:
+  // ProfileKeyedService
+  virtual void Shutdown() OVERRIDE;
+
+  // A pointer to the profile which this service refers to.
+  Profile* profile_;
+
+  scoped_refptr<PredictorDatabase> db_;
+
+  DISALLOW_COPY_AND_ASSIGN(PredictorDatabaseService);
+};
+
+}  // namespace predictors
+
+#endif  // CHROME_BROWSER_PREDICTORS_PREDICTOR_DATABASE_SERVICE_H_