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

content/browser/net/network_errors_listing_ui.cc

Index: content/browser/net/network_errors_listing_ui.cc
diff --git a/content/browser/net/network_errors_listing_ui.cc b/content/browser/net/network_errors_listing_ui.cc
index 9f29c2869f099710301fc79d797ba5233504f89a..7db9906fc2103251cb7324d93396e12fdd087a90 100644
--- a/content/browser/net/network_errors_listing_ui.cc
+++ b/content/browser/net/network_errors_listing_ui.cc
@@ -4,6 +4,9 @@
 
 #include "content/browser/net/network_errors_listing_ui.h"
 
+#include <memory>
+#include <utility>
+
 #include "base/bind.h"
 #include "base/json/json_writer.h"
 #include "base/values.h"
@@ -44,10 +47,10 @@ std::unique_ptr<base::ListValue> GetNetworkErrorData() {
     // Exclude the aborted and pending codes as these don't return a page.
     if (error_code != net::Error::ERR_IO_PENDING &&
         error_code != net::Error::ERR_ABORTED) {
-      base::DictionaryValue* error = new base::DictionaryValue();
+      std::unique_ptr<base::DictionaryValue> error(new base::DictionaryValue());
       error->SetInteger(kErrorIdField, error_code);
       error->SetString(kErrorCodeField, itr.key());
-      error_list->Append(error);
+      error_list->Append(std::move(error));
     }
   }
   return error_list;