base::ListValue::Append cleanup: pass unique_ptr instead of the released pointer.

extensions/browser/api/web_request/web_request_api.cc

Index: extensions/browser/api/web_request/web_request_api.cc
diff --git a/extensions/browser/api/web_request/web_request_api.cc b/extensions/browser/api/web_request/web_request_api.cc
index 9610ca3efdf8984489e279205ea04ebc43fcad21..0d319f2e8f73693beb660ec20a39389e38cb7519 100644
--- a/extensions/browser/api/web_request/web_request_api.cc
+++ b/extensions/browser/api/web_request/web_request_api.cc
@@ -1544,7 +1544,7 @@ base::ListValue* SummarizeCookieModifications(
                            *mod.modification->name);
       }
     }
-    cookie_modifications->Append(summary.release());
+    cookie_modifications->Append(std::move(summary));
   }
   return cookie_modifications.release();
 }