Remove stl_util's deletion function use from chrome/.

chrome/browser/diagnostics/sqlite_diagnostics.h

 // Copyright (c) 2010 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_DIAGNOSTICS_SQLITE_DIAGNOSTICS_H_
 #define CHROME_BROWSER_DIAGNOSTICS_SQLITE_DIAGNOSTICS_H_
 
+#include <memory>
+
 #include "build/build_config.h"
 #include "chrome/browser/diagnostics/diagnostics_test.h"
 
 namespace diagnostics {
 
 enum SQLiteIntegrityOutcomeCode {
   DIAG_SQLITE_SUCCESS,
   DIAG_SQLITE_FILE_NOT_FOUND_OK,
   DIAG_SQLITE_FILE_NOT_FOUND,
   DIAG_SQLITE_ERROR_HANDLER_CALLED,
   DIAG_SQLITE_CANNOT_OPEN_DB,
   DIAG_SQLITE_DB_LOCKED,
   DIAG_SQLITE_PRAGMA_FAILED,
   DIAG_SQLITE_DB_CORRUPTED
 };
 
 // Factories for the database integrity tests we run in diagnostic mode.
-DiagnosticsTest* MakeSqliteCookiesDbTest();
-DiagnosticsTest* MakeSqliteFaviconsDbTest();
-DiagnosticsTest* MakeSqliteHistoryDbTest();
-DiagnosticsTest* MakeSqliteTopSitesDbTest();
+std::unique_ptr<DiagnosticsTest> MakeSqliteCookiesDbTest();
+std::unique_ptr<DiagnosticsTest> MakeSqliteFaviconsDbTest();
+std::unique_ptr<DiagnosticsTest> MakeSqliteHistoryDbTest();
+std::unique_ptr<DiagnosticsTest> MakeSqliteTopSitesDbTest();
 
 #if defined(OS_CHROMEOS)
-DiagnosticsTest* MakeSqliteNssCertDbTest();
-DiagnosticsTest* MakeSqliteNssKeyDbTest();
+std::unique_ptr<DiagnosticsTest> MakeSqliteNssCertDbTest();
+std::unique_ptr<DiagnosticsTest> MakeSqliteNssKeyDbTest();
 #endif  // defined(OS_CHROMEOS)
 
-DiagnosticsTest* MakeSqliteWebDatabaseTrackerDbTest();
-DiagnosticsTest* MakeSqliteWebDataDbTest();
+std::unique_ptr<DiagnosticsTest> MakeSqliteWebDatabaseTrackerDbTest();
+std::unique_ptr<DiagnosticsTest> MakeSqliteWebDataDbTest();
 
 }  // namespace diagnostics
 
 #endif  // CHROME_BROWSER_DIAGNOSTICS_SQLITE_DIAGNOSTICS_H_