Remove raw DictionaryValue::Set in //components

components/sync/protocol/sync_protocol_error.cc

Index: components/sync/protocol/sync_protocol_error.cc
diff --git a/components/sync/protocol/sync_protocol_error.cc b/components/sync/protocol/sync_protocol_error.cc
index 01fd3b09a7b08a618d1c3c3328283889a57c0adc..1f1ff0d3c1f9f30fb5f22cdc5f6f28f46089cf70 100644
--- a/components/sync/protocol/sync_protocol_error.cc
+++ b/components/sync/protocol/sync_protocol_error.cc
@@ -4,7 +4,10 @@
 
 #include "components/sync/protocol/sync_protocol_error.h"
 
+#include <utility>
+
 #include "base/logging.h"
+#include "base/memory/ptr_util.h"
 
 namespace syncer {
 #define ENUM_CASE(x) \
@@ -52,8 +55,8 @@ SyncProtocolError::SyncProtocolError(const SyncProtocolError& other) = default;
 
 SyncProtocolError::~SyncProtocolError() {}
 
-base::DictionaryValue* SyncProtocolError::ToValue() const {
-  base::DictionaryValue* value = new base::DictionaryValue();
+std::unique_ptr<base::DictionaryValue> SyncProtocolError::ToValue() const {
+  auto value = base::MakeUnique<base::DictionaryValue>();
   value->SetString("ErrorType", GetSyncErrorTypeString(error_type));
   value->SetString("ErrorDescription", error_description);
   value->SetString("url", url);