don't count file memory in memory benchmark

Author: atuchin-m

benches/bench_memory.rs

@@ -149,9 +149,10 @@ fn bench_memory_usage(c: &mut Criterion) {
                 ALLOCATOR.reset();
                 let rules = rules_from_lists(&["data/brave/brave-main-list.txt"]);
                 let mut engine = Engine::from_rules(rules, Default::default());
-                let resource_json =
+                let mut resource_json =
                     std::fs::read_to_string("data/brave/brave-resources.json").unwrap();
-                let resource_list: Vec<Resource> = serde_json::from_str(&resource_json).unwrap();
+                let resource_list: Vec<Resource> =
+                    serde_json::from_str(&std::mem::take(&mut resource_json)).unwrap();
                 engine.use_resources(resource_list);
 
                 if run_requests {

js/src/lib.rs

@@ -248,7 +248,7 @@ fn engine_url_cosmetic_resources(mut cx: FunctionContext) -> JsResult<JsValue> {
 fn engine_serialize(mut cx: FunctionContext) -> JsResult<JsArrayBuffer> {
     let this = cx.argument::<JsBox<Engine>>(0)?;
     let serialized = if let Ok(engine) = this.0.lock() {
-        engine.serialize().unwrap()
+        engine.serialize().to_vec()
     } else {
         cx.throw_error("Failed to acquire lock on engine")?
     };