refactored performance timing to align with updated spec

refactoring with ResourceFetchMetadata

implemented deprecated window.timing functionality

created ResourceTimingListener trait

fixed w3c links in navigation timing

components/script/dom/htmlscriptelement.rs

@@ -21,6 +21,7 @@ use dom::globalscope::GlobalScope;
 use dom::htmlelement::HTMLElement;
 use dom::node::{ChildrenMutation, CloneChildrenFlag, Node};
 use dom::node::{document_from_node, window_from_node};
+use dom::performanceresourcetiming::InitiatorType;
 use dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
 use encoding_rs::Encoding;
@@ -28,9 +29,9 @@ use html5ever::{LocalName, Prefix};
 use ipc_channel::ipc;
 use ipc_channel::router::ROUTER;
 use js::jsval::UndefinedValue;
-use net_traits::{FetchMetadata, FetchResponseListener, Metadata, NetworkError};
+use net_traits::{FetchMetadata, FetchResponseListener, Metadata, NetworkError, ResourceFetchTiming};
 use net_traits::request::{CorsSettings, CredentialsMode, Destination, RequestInit, RequestMode};
-use network_listener::{NetworkListener, PreInvoke};
+use network_listener::{self, NetworkListener, PreInvoke, ResourceTimingListener};
 use servo_atoms::Atom;
 use servo_config::opts;
 use servo_url::ServoUrl;
@@ -154,7 +155,10 @@ struct ScriptContext {
     /// The initial URL requested.
     url: ServoUrl,
     /// Indicates whether the request failed, and why
-    status: Result<(), NetworkError>
+    status: Result<(), NetworkError>,
+
+    /// Timing object for this resource
+    resource_timing: ResourceFetchTiming,
 }
 
 impl FetchResponseListener for ScriptContext {
@@ -221,6 +225,30 @@ impl FetchResponseListener for ScriptContext {
 
         document.finish_load(LoadType::Script(self.url.clone()));
     }
+
+    fn resource_timing_mut(&mut self) -> &mut ResourceFetchTiming {
+        &mut self.resource_timing
+    }
+
+    fn resource_timing(&self) -> &ResourceFetchTiming {
+        &self.resource_timing
+    }
+
+    fn submit_resource_timing(&mut self) {
+        network_listener::submit_timing(self)
+    }
+}
+
+impl ResourceTimingListener for ScriptContext {
+    fn resource_timing_information(&self) -> (InitiatorType, ServoUrl) {
+        let initiator_type = InitiatorType::LocalName(
+            self.elem.root().upcast::<Element>().local_name().to_string());
+        (initiator_type, self.url.clone())
+    }
+
+    fn resource_timing_global(&self) -> DomRoot<GlobalScope> {
+        (document_from_node(&*self.elem.root()).global())
+    }
 }
 
 impl PreInvoke for ScriptContext {}
@@ -267,7 +295,8 @@ fn fetch_a_classic_script(script: &HTMLScriptElement,
         data: vec!(),
         metadata: None,
         url: url.clone(),
-        status: Ok(())
+        status: Ok(()),
+        resource_timing: ResourceFetchTiming::new(),
     }));
 
     let (action_sender, action_receiver) = ipc::channel().unwrap();