Add the LoggedIn Predictor, to detect which websites a user is likely

chrome/browser/predictors/logged_in_predictor_table.h

+// Copyright (c) 2013 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_LOGGED_IN_PREDICTOR_TABLE_H_
+#define CHROME_BROWSER_PREDICTORS_LOGGED_IN_PREDICTOR_TABLE_H_
+
+#include <string>
+
+#include "base/time.h"
+#include "chrome/browser/predictors/predictor_table_base.h"
+#include "googleurl/src/gurl.h"
+
+namespace sql {
+class Statement;
+}
+
+namespace predictors {
+
+// Interface for database tables used by the ResourcePrefetchPredictor.
+// All methods except the constructor and destructor need to be called on the DB
+// thread.
+//
+// Currently manages:
+//  - UrlResourceTable - resources per Urls.

[Shishir, 2013/04/16 21:22:04]

These comments are invalid. Please update.

[tburkard, 2013/04/16 21:47:19]

Done.

+//  - UrlMetadataTable - misc data for Urls (like last visit time).
+//  - HostResourceTable - resources per host.
+//  - HostMetadataTable - misc data for hosts.
+class LoggedInPredictorTable : public PredictorTableBase {

[Shishir, 2013/04/16 21:22:04]

LoggedInPredictor seems a bit generic - Would LoggedInPrerenderPredictor be
better?

[tburkard, 2013/04/16 21:47:19]

As explained, this will eventually be used for purposes other than Prerender.

+ public:
+  void Add(const GURL& url);

[Shishir, 2013/04/16 21:22:04]

Please explain the table schema.

[tburkard, 2013/04/16 21:47:19]

Done.

+  void Exists(const GURL& url, bool* is_present, bool* lookup_succeeded);
+  void DeleteAllCreatedBetween(const base::Time& delete_begin,
+                               const base::Time& delete_end);
+
+ private:
+  friend class PredictorDatabaseInternal;
+
+  LoggedInPredictorTable();
+  virtual ~LoggedInPredictorTable();
+
+  // PredictorTableBase methods.
+  virtual void CreateTableIfNonExistent() OVERRIDE;
+  virtual void LogDatabaseStats() OVERRIDE;
+
+  std::string GetKey(const GURL& url);
+
+  DISALLOW_COPY_AND_ASSIGN(LoggedInPredictorTable);
+};
+
+}  // namespace predictors
+
+#endif  // CHROME_BROWSER_PREDICTORS_LOGGED_IN_PREDICTOR_TABLE_H_