Auto merge of #18283 - ferjm:user.timing.api, r=jdm

User Timing API

- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #18109
- [X] There are tests for these changes. I enabled the peformance-timeline API WPTs but some of them are still failing because of implementation bugs or missing APIs (Resource Timing, for instance) the tests are dependent of. I'll file issues to fix them.

<!-- 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/18283)
<!-- Reviewable:end -->

tests/wpt/include.ini

@@ -45,6 +45,8 @@ skip: true
       skip: true
       [script_scheduling]
         skip: false
+[performance-timeline]
+  skip: false
 [quirks-mode]
   skip: false
 [referrer-policy]

tests/wpt/metadata/performance-timeline/case-sensitivity.any.js.ini

@@ -0,0 +1,17 @@
+[case-sensitivity.any.worker.html]
+  type: testharness
+  [getEntriesByType values are case sensitive]
+    expected: FAIL
+
+  [getEntriesByName values are case sensitive]
+    expected: FAIL
+
+
+[case-sensitivity.any.html]
+  type: testharness
+  [getEntriesByType values are case sensitive]
+    expected: FAIL
+
+  [getEntriesByName values are case sensitive]
+    expected: FAIL
+

tests/wpt/metadata/performance-timeline/po-disconnect.any.js.ini

@@ -0,0 +1,13 @@
+[po-disconnect.any.html]
+  type: testharness
+  expected: TIMEOUT
+  [An observer disconnected after a mark must receive the mark]
+    expected: TIMEOUT
+
+
+[po-disconnect.any.worker.html]
+  type: testharness
+  expected: TIMEOUT
+  [An observer disconnected after a mark must receive the mark]
+    expected: TIMEOUT
+

tests/wpt/metadata/performance-timeline/po-navigation.html.ini

@@ -0,0 +1,5 @@
+[po-navigation.html]
+  type: testharness
+  [navigation entry is observable]
+    expected: FAIL
+

tests/wpt/metadata/performance-timeline/po-observe.any.js.ini

@@ -0,0 +1,11 @@
+[po-observe.any.worker.html]
+  type: testharness
+  [replace observer if already present]
+    expected: FAIL
+
+
+[po-observe.any.html]
+  type: testharness
+  [replace observer if already present]
+    expected: FAIL
+

tests/wpt/metadata/performance-timeline/po-resource.html.ini

@@ -0,0 +1,5 @@
+[po-resource.html]
+  type: testharness
+  [resource entries are observable]
+    expected: FAIL
+

tests/wpt/mozilla/meta/MANIFEST.json

@@ -28013,7 +28013,7 @@
    "testharness"
   ],
   "mozilla/interfaces.html": [
-   "a7ed38b6069caffd87d9573978e6ef9938d87753",
+   "66e66d3bdfa3bebd5bf3d711c0737fb394efe973",
    "testharness"
   ],
   "mozilla/interfaces.js": [
@@ -28021,7 +28021,7 @@
    "support"
   ],
   "mozilla/interfaces.worker.js": [
-   "fb5537ec0753e3a1c56dff957bcc1c0660dcb7b9",
+   "c9dcc4f24540914b3be1ef18f13b721773eb76be",
    "testharness"
   ],
   "mozilla/iterable.html": [

tests/wpt/mozilla/tests/mozilla/interfaces.html

@@ -161,6 +161,8 @@ test_interfaces([
   "PageTransitionEvent",
   "Performance",
   "PerformanceEntry",
+  "PerformanceMark",
+  "PerformanceMeasure",
   "PerformanceObserver",
   "PerformanceObserverEntryList",
   "PerformancePaintTiming",

tests/wpt/mozilla/tests/mozilla/interfaces.worker.js

@@ -34,6 +34,8 @@ test_interfaces([
   "MessageEvent",
   "Performance",
   "PerformanceEntry",
+  "PerformanceMark",
+  "PerformanceMeasure",
   "PerformanceObserver",
   "PerformanceObserverEntryList",
   "PerformancePaintTiming",