[Extensions][TaskScheduler] Update ActivityLog for scheduling migration

chrome/browser/extensions/activity_log/activity_database.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_EXTENSIONS_ACTIVITY_LOG_ACTIVITY_DATABASE_H_
 #define CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_ACTIVITY_DATABASE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 154 matching lines @@
   // or changes to it.
   void SoftFailureClose();
 
   // Handle errors in database writes. For a serious & permanent error, it
   // invokes HardFailureClose(); for a less serious/permanent error, it invokes
   // SoftFailureClose().
   void DatabaseErrorCallback(int error, sql::Statement* stmt);
 
   // For unit testing only.
   void RecordBatchedActionsWhileTesting();
-  void SetTimerForTesting(int milliseconds);
 
   // Retrieve a handle to the raw SQL database.  This is only intended to be
   // used by ActivityLogDatabasePolicy::GetDatabaseConnection(), and should
   // only be called on the database thread.
   sql::Connection* GetSqlConnection();
 
   // A reference a Delegate for policy-specific database behavior.  See the
   // top-level comment for ActivityDatabase for comments on cleanup.
   Delegate* delegate_;
 
   sql::Connection db_;
   bool valid_db_;
   bool batch_mode_;
   base::TimeDelta batching_period_;
   base::RepeatingTimer timer_;
   bool already_closed_;
   bool did_init_;
 
   friend class ActivityLogDatabasePolicy;
-  FRIEND_TEST_ALL_PREFIXES(ActivityDatabaseTest, BatchModeOff);
-  FRIEND_TEST_ALL_PREFIXES(ActivityDatabaseTest, BatchModeOn);
-  FRIEND_TEST_ALL_PREFIXES(ActivityDatabaseTest, BatchModeFlush);
+  friend class ActivityDatabaseTest;
   DISALLOW_COPY_AND_ASSIGN(ActivityDatabase);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_ACTIVITY_DATABASE_H_