Add foundation for trimming the AffiliationDatabase.

components/password_manager/core/browser/affiliation_database.h

 // Copyright 2014 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 COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_AFFILIATION_DATABASE_H_
 #define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_AFFILIATION_DATABASE_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
@@ skipping 52 matching lines @@
   bool Store(const AffiliatedFacetsWithUpdateTime& affiliated_facets);
 
   // Stores the equivalence class defined by |affiliated_facets| to the DB,
   // database, and removes any other equivalence classes that are in conflict
   // with |affiliated_facets|, i.e. those that are neither equal nor disjoint to
   // it. Removed equivalence classes are stored into |removed_affiliations|.
   void StoreAndRemoveConflicting(
       const AffiliatedFacetsWithUpdateTime& affiliated_facets,
       std::vector<AffiliatedFacetsWithUpdateTime>* removed_affiliations);
 
+  // Deletes the database file at |path| along with all its auxiliary files. The
+  // database must be closed before calling this.
+  static void Delete(const base::FilePath& path);
+
  private:
   // Creates any tables and indices that do not already exist in the database.
   bool CreateTablesAndIndicesIfNeeded();
 
   // Called when SQLite encounters an error.
   void SQLErrorCallback(int error_number, sql::Statement* statement);
 
   // The SQL connection to the database.
   scoped_ptr<sql::Connection> sql_connection_;
 
   DISALLOW_COPY_AND_ASSIGN(AffiliationDatabase);
 };
 
 }  // namespace password_manager
 
 #endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_AFFILIATION_DATABASE_H_