Auto merge of #20459 - avadacatavra:time-origin, r=avadacatavra

Updating performance implementation and putting more measurements in

<!-- Please describe your changes on the following line: -->

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [ ] `./mach build -d` does not report any errors
- [ ] `./mach test-tidy` does not report any errors
- [ ] These changes fix #__ (github issue number if applicable).

<!-- Either: -->
- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because _____

<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->

<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/20459)
<!-- Reviewable:end -->

1 files changed, 35 insertions, 3 deletions

diff --git a/components/script/dom/xmlhttprequest.rs b/components/script/dom/xmlhttprequest.rs
index 3e1644536ab..18628f27f70 100644
--- a/components/script/dom/xmlhttprequest.rs
+++ b/components/script/dom/xmlhttprequest.rs
@@ -28,6 +28,7 @@ use crate::dom::globalscope::GlobalScope;
 use crate::dom::headers::is_forbidden_header_name;
 use crate::dom::htmlformelement::{encode_multipart_form_data, generate_boundary};
 use crate::dom::node::Node;
+use crate::dom::performanceresourcetiming::InitiatorType;
 use crate::dom::progressevent::ProgressEvent;
 use crate::dom::servoparser::ServoParser;
 use crate::dom::urlsearchparams::URLSearchParams;
@@ -36,7 +37,7 @@ use crate::dom::workerglobalscope::WorkerGlobalScope;
 use crate::dom::xmlhttprequesteventtarget::XMLHttpRequestEventTarget;
 use crate::dom::xmlhttprequestupload::XMLHttpRequestUpload;
 use crate::fetch::FetchCanceller;
-use crate::network_listener::{NetworkListener, PreInvoke};
+use crate::network_listener::{self, NetworkListener, PreInvoke, ResourceTimingListener};
 use crate::task_source::networking::NetworkingTaskSource;
 use crate::task_source::TaskSourceName;
 use crate::timers::{OneshotTimerCallback, OneshotTimerHandle};
@@ -63,6 +64,7 @@ use net_traits::trim_http_whitespace;
 use net_traits::CoreResourceMsg::Fetch;
 use net_traits::{FetchChannels, FetchMetadata, FilteredMetadata};
 use net_traits::{FetchResponseListener, NetworkError, ReferrerPolicy};
+use net_traits::{ResourceFetchTiming, ResourceTimingType};
 use script_traits::DocumentActivity;
 use servo_atoms::Atom;
 use servo_url::ServoUrl;
@@ -95,6 +97,7 @@ struct XHRContext {
     gen_id: GenerationId,
     buf: DomRefCell<Vec<u8>>,
     sync_status: DomRefCell<Option<ErrorResult>>,
+    resource_timing: ResourceFetchTiming,
 }
 
 #[derive(Clone)]
@@ -257,13 +260,41 @@ impl XMLHttpRequest {
                     .process_data_available(self.gen_id, self.buf.borrow().clone());
             }
 
-            fn process_response_eof(&mut self, response: Result<(), NetworkError>) {
+            fn process_response_eof(
+                &mut self,
+                response: Result<ResourceFetchTiming, NetworkError>,
+            ) {
                 let rv = self
                     .xhr
                     .root()
-                    .process_response_complete(self.gen_id, response);
+                    .process_response_complete(self.gen_id, response.map(|_| ()));
                 *self.sync_status.borrow_mut() = Some(rv);
             }
+
+            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 XHRContext {
+            fn resource_timing_information(&self) -> (InitiatorType, ServoUrl) {
+                (
+                    InitiatorType::XMLHttpRequest,
+                    self.resource_timing_global().get_url().clone(),
+                )
+            }
+
+            fn resource_timing_global(&self) -> DomRoot<GlobalScope> {
+                self.xhr.root().global()
+            }
         }
 
         impl PreInvoke for XHRContext {
@@ -1424,6 +1455,7 @@ impl XMLHttpRequest {
             gen_id: self.generation_id.get(),
             buf: DomRefCell::new(vec![]),
             sync_status: DomRefCell::new(None),
+            resource_timing: ResourceFetchTiming::new(ResourceTimingType::Resource),
         }));
 
         let (task_source, script_port) = if self.sync.get() {