Remove stl_util's deletion function use from chrome/.

chrome/browser/diagnostics/recon_diagnostics.h

 // Copyright (c) 2011 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_RECON_DIAGNOSTICS_H_
 #define CHROME_BROWSER_DIAGNOSTICS_RECON_DIAGNOSTICS_H_
 
+#include <memory>
+
 #include "chrome/browser/diagnostics/diagnostics_test.h"
 
 namespace diagnostics {
 
 enum OutcomeCodes {
   DIAG_RECON_SUCCESS,
 
   // OperatingSystemTest
   DIAG_RECON_PRE_WINDOW_XP_SP2,
 
@@ skipping 18 matching lines @@
 
   // JSONTest
   DIAG_RECON_FILE_NOT_FOUND,
   DIAG_RECON_FILE_NOT_FOUND_OK,
   DIAG_RECON_CANNOT_OBTAIN_FILE_SIZE,
   DIAG_RECON_FILE_TOO_BIG,
   DIAG_RECON_UNABLE_TO_OPEN_FILE,
   DIAG_RECON_PARSE_ERROR,
 };
 
-DiagnosticsTest* MakeBookMarksTest();
-DiagnosticsTest* MakeDictonaryDirTest();
-DiagnosticsTest* MakeDiskSpaceTest();
-DiagnosticsTest* MakeInstallTypeTest();
-DiagnosticsTest* MakeLocalStateFileTest();
-DiagnosticsTest* MakeLocalStateTest();
-DiagnosticsTest* MakeOperatingSystemTest();
-DiagnosticsTest* MakePreferencesTest();
-DiagnosticsTest* MakeResourcesFileTest();
-DiagnosticsTest* MakeUserDirTest();
-DiagnosticsTest* MakeVersionTest();
+std::unique_ptr<DiagnosticsTest> MakeBookMarksTest();
+std::unique_ptr<DiagnosticsTest> MakeDictonaryDirTest();
+std::unique_ptr<DiagnosticsTest> MakeDiskSpaceTest();
+std::unique_ptr<DiagnosticsTest> MakeInstallTypeTest();
+std::unique_ptr<DiagnosticsTest> MakeLocalStateFileTest();
+std::unique_ptr<DiagnosticsTest> MakeLocalStateTest();
+std::unique_ptr<DiagnosticsTest> MakeOperatingSystemTest();
+std::unique_ptr<DiagnosticsTest> MakePreferencesTest();
+std::unique_ptr<DiagnosticsTest> MakeResourcesFileTest();
+std::unique_ptr<DiagnosticsTest> MakeUserDirTest();
+std::unique_ptr<DiagnosticsTest> MakeVersionTest();
 
 }  // namespace diagnostics
 
 #endif  // CHROME_BROWSER_DIAGNOSTICS_RECON_DIAGNOSTICS_H_