Convert //sql to use std::unique_ptr

sql/test/sql_test_base.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 SQL_TEST_SQL_TEST_BASE_H_
 #define SQL_TEST_SQL_TEST_BASE_H_
 
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "sql/connection.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace sql {
 
 class Connection;
 
 // Base class for SQL tests.
 //
 // WARNING: We want to run the same gtest based unit test code both against
@@ skipping 48 matching lines @@
  private:
   base::ScopedTempDir temp_dir_;
   sql::Connection db_;
 
   DISALLOW_COPY_AND_ASSIGN(SQLTestBase);
 };
 
 }  // namespace sql
 
 #endif  // SQL_TEST_SQL_TEST_BASE_H_