Remove more usage of the base::ListValue::Append(Value*) overload.

printing/print_settings_conversion.cc

 // Copyright 2014 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 "printing/print_settings_conversion.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <cmath>
+#include <memory>
 #include <string>
+#include <utility>
 
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "printing/page_size_margins.h"
 #include "printing/print_job_constants.h"
 #include "printing/print_settings.h"
 #include "printing/units.h"
 
@@ skipping 187 matching lines @@
   job_settings->SetString(kSettingHeaderFooterURL, settings.url());
   job_settings->SetBoolean(kSettingShouldPrintBackgrounds,
                            settings.should_print_backgrounds());
   job_settings->SetBoolean(kSettingShouldPrintSelectionOnly,
                            settings.selection_only());
   job_settings->SetInteger(kSettingMarginsType, settings.margin_type());
   if (!settings.ranges().empty()) {
     base::ListValue* page_range_array = new base::ListValue;
     job_settings->Set(kSettingPageRange, page_range_array);
     for (size_t i = 0; i < settings.ranges().size(); ++i) {
-      base::DictionaryValue* dict = new base::DictionaryValue;
-      page_range_array->Append(dict);
+      std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue);
       dict->SetInteger(kSettingPageRangeFrom, settings.ranges()[i].from + 1);
       dict->SetInteger(kSettingPageRangeTo, settings.ranges()[i].to + 1);
+      page_range_array->Append(std::move(dict));
     }
   }
 
   job_settings->SetBoolean(kSettingCollate, settings.collate());
   job_settings->SetInteger(kSettingCopies, settings.copies());
   job_settings->SetInteger(kSettingColor, settings.color());
   job_settings->SetInteger(kSettingDuplexMode, settings.duplex_mode());
   job_settings->SetBoolean(kSettingLandscape, settings.landscape());
   job_settings->SetString(kSettingDeviceName, settings.device_name());
 
@@ skipping 14 matching lines @@
   const PageSetup& page_setup = settings.page_setup_device_units();
   SetMarginsToJobSettings(
       "effective_margins", page_setup.effective_margins(), debug);
   SetSizeToJobSettings("physical_size", page_setup.physical_size(), debug);
   SetRectToJobSettings("overlay_area", page_setup.overlay_area(), debug);
   SetRectToJobSettings("content_area", page_setup.content_area(), debug);
   SetRectToJobSettings("printable_area", page_setup.printable_area(), debug);
 }
 
 }  // namespace printing