Rewrite simple uses of base::ListValue::Append() taking a raw pointer var.

chrome/browser/ui/webui/options/clear_browser_data_handler.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/webui/options/clear_browser_data_handler.h"
 
 #include <stddef.h>
 
+#include <memory>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 189 matching lines @@
       case 2:
         label_string = l10n_util::GetStringUTF16(IDS_CLEAR_DATA_WEEK);
         break;
       case 3:
         label_string = l10n_util::GetStringUTF16(IDS_CLEAR_DATA_4WEEKS);
         break;
       case 4:
         label_string = l10n_util::GetStringUTF16(IDS_CLEAR_DATA_EVERYTHING);
         break;
     }
-    base::ListValue* option = new base::ListValue();
+    std::unique_ptr<base::ListValue> option(new base::ListValue());
     option->AppendInteger(i);
     option->AppendString(label_string);
-    time_list->Append(option);
+    time_list->Append(std::move(option));
   }
   localized_strings->Set("clearBrowserDataTimeList", time_list);
   localized_strings->SetBoolean("showDeleteBrowsingHistoryCheckboxes",
                                 !Profile::FromWebUI(web_ui())->IsSupervised());
 }
 
 void ClearBrowserDataHandler::RegisterMessages() {
   // Setup handlers specific to this panel.
   web_ui()->RegisterMessageCallback("performClearBrowserData",
       base::Bind(&ClearBrowserDataHandler::HandleClearBrowserData,
@@ skipping 191 matching lines @@
       "History.ClearBrowsingData.HistoryNoticeShownInFooterWhenUpdated",
       should_show_history_notice_);
 }
 
 void ClearBrowserDataHandler::UpdateHistoryDeletionDialog(bool show) {
   // This is used by OnBrowsingDataRemoverDone (when the deletion finishes).
   should_show_history_deletion_dialog_ = show;
 }
 
 }  // namespace options