Auto merge of #23323 - nehalem501:master, r=jdm

Implement connectStart in PerformanceResourceTiming

<!-- Please describe your changes on the following line: -->
- Added connectStart where needed (```ResourceFetchTiming```, ```ResourceAttribute```) in ```components/net_traits/lib.rs ```
- Before calling ```client.request``` in ```obtain_response```, we now add the ```connectStart``` attribute (```components/net/http_loader.rs```)
- Updated tests to reflect those changes

---
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- [X] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [X] These changes fix #21261 (at least partially)

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- [X] There are tests for these changes OR
- [ ] These changes do not require tests because ___

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tests/wpt/metadata/resource-timing/idlharness.any.js.ini

@@ -44,18 +44,12 @@
   [PerformanceResourceTiming interface: resource must inherit property "domainLookupStart" with the proper type]
     expected: FAIL
 
-  [PerformanceResourceTiming interface: resource must inherit property "connectStart" with the proper type]
-    expected: FAIL
-
   [PerformanceResourceTiming interface: attribute workerStart]
     expected: FAIL
 
   [PerformanceResourceTiming interface: attribute domainLookupStart]
     expected: FAIL
 
-  [PerformanceResourceTiming interface: attribute connectStart]
-    expected: FAIL
-
   [PerformanceResourceTiming interface: resource must inherit property "redirectEnd" with the proper type]
     expected: FAIL
 
@@ -157,9 +151,6 @@
   [PerformanceResourceTiming interface: attribute domainLookupStart]
     expected: FAIL
 
-  [PerformanceResourceTiming interface: attribute connectStart]
-    expected: FAIL
-
   [PerformanceResourceTiming interface: attribute redirectEnd]
     expected: FAIL
 

tests/wpt/metadata/resource-timing/resource_TAO_zero.htm.ini

@@ -11,9 +11,6 @@
   [domainLookupStart should be 0 in cross-origin request.]
     expected: FAIL
 
-  [connectStart should be 0 in cross-origin request.]
-    expected: FAIL
-
   [redirectStart should be 0 in cross-origin request.]
     expected: PASS