Remove raw DictionaryValue::Set in //chrome

chrome/test/chromedriver/commands.cc

Index: chrome/test/chromedriver/commands.cc
diff --git a/chrome/test/chromedriver/commands.cc b/chrome/test/chromedriver/commands.cc
index 3087083eef61372cf079b149043d1710bb3a9675..1c36f9a024ad43e64f0c202afb8c03fd6caf9d52 100644
--- a/chrome/test/chromedriver/commands.cc
+++ b/chrome/test/chromedriver/commands.cc
@@ -45,8 +45,8 @@ void ExecuteGetStatus(
   os.SetString("arch", base::SysInfo::OperatingSystemArchitecture());
 
   base::DictionaryValue info;
-  info.Set("build", build.DeepCopy());
-  info.Set("os", os.DeepCopy());
+  info.Set("build", base::MakeUnique<base::Value>(build));
+  info.Set("os", base::MakeUnique<base::Value>(os));
   callback.Run(Status(kOk), std::unique_ptr<base::Value>(info.DeepCopy()),
                std::string(), false);
 }
@@ -92,8 +92,8 @@ void OnGetSession(const base::WeakPtr<size_t>& session_remaining_count,
   (*session_remaining_count)--;
 
   std::unique_ptr<base::DictionaryValue> session(new base::DictionaryValue());
-  session->Set("id", new base::Value(session_id));
-  session->Set("capabilities", value->DeepCopy());
+  session->SetString("id", session_id);
+  session->Set("capabilities", base::MakeUnique<base::Value>(*value));
   session_list->Append(std::move(session));
 
   if (!*session_remaining_count) {