Make PasswordFormManager::best_matches_ const

components/password_manager/core/browser/statistics_table.h

 // Copyright 2015 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_STATISTICS_TABLE_H_
 #define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_STATISTICS_TABLE_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 21 matching lines @@
   // Number of times the user dismissed the bubble.
   int dismissal_count = 0;
 
   // The date when the row was updated.
   base::Time update_time;
 };
 
 bool operator==(const InteractionsStats& lhs, const InteractionsStats& rhs);
 
 // Returns an element from |stats| with |username| or nullptr if not found.
-InteractionsStats* FindStatsByUsername(
-    const std::vector<std::unique_ptr<InteractionsStats>>& stats,
+const InteractionsStats* FindStatsByUsername(
+    const std::vector<const InteractionsStats*>& stats,
     const base::string16& username);
 
 // Represents the 'stats' table in the Login Database.
 class StatisticsTable {
  public:
   StatisticsTable();
   ~StatisticsTable();
 
   // Initializes |db_|.
   void Init(sql::Connection* db);
@@ skipping 23 matching lines @@
 
  private:
   sql::Connection* db_;
 
   DISALLOW_COPY_AND_ASSIGN(StatisticsTable);
 };
 
 }  // namespace password_manager
 
 #endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_STATISTICS_TABLE_H_