Remove raw DictionaryValue::Set in //components

components/cloud_devices/common/printer_description.cc

Index: components/cloud_devices/common/printer_description.cc
diff --git a/components/cloud_devices/common/printer_description.cc b/components/cloud_devices/common/printer_description.cc
index aa7fa38d51703e856414027737298b3f82dbc37b..3cff18981a91e1b3fbac5e076837efa4ff756a3b 100644
--- a/components/cloud_devices/common/printer_description.cc
+++ b/components/cloud_devices/common/printer_description.cc
@@ -13,6 +13,7 @@
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "base/strings/string_util.h"
 #include "base/values.h"
 #include "components/cloud_devices/common/cloud_device_description_consts.h"
@@ -733,16 +734,15 @@ class PageRangeTraits : public ItemsTraits<kOptionPageRange> {
 
   static void Save(const PageRange& option, base::DictionaryValue* dict) {
     if (!option.empty()) {
-      base::ListValue* list = new base::ListValue;
-      dict->Set(kPageRangeInterval, list);
+      auto list = base::MakeUnique<base::ListValue>();
       for (size_t i = 0; i < option.size(); ++i) {
-        std::unique_ptr<base::DictionaryValue> interval(
-            new base::DictionaryValue);
+        auto interval = base::MakeUnique<base::DictionaryValue>();
         interval->SetInteger(kPageRangeStart, option[i].start);
         if (option[i].end < kMaxPageNumber)
           interval->SetInteger(kPageRangeEnd, option[i].end);
         list->Append(std::move(interval));
       }
+      dict->Set(kPageRangeInterval, std::move(list));
     }
   }
 };