Auto merge of #18670 - avadacatavra:interactive-metrics, r=jdm

added time to interactive metrics

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Added time to interactive metrics and refactored metrics/lib

I need to write tests, but wanted to submit the PR for review

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- [ ] `./mach build -d` does not report any errors
- [ ] `./mach test-tidy` does not report any errors
- [ ] These changes fix #__ (github issue number if applicable).

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- [ ] These changes do not require tests because _____

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components/script/dom/xmlhttprequest.rs

@@ -1286,7 +1286,7 @@ impl XMLHttpRequest {
 
         let (task_source, script_port) = if self.sync.get() {
             let (tx, rx) = global.new_script_pair();
-            (NetworkingTaskSource(tx), Some(rx))
+            (NetworkingTaskSource(tx, global.pipeline_id()), Some(rx))
         } else {
             (global.networking_task_source(), None)
         };