Auto merge of #22599 - aditj:patch-1-re, r=ferjm

Implement performance interface extension for PerformanceResourceTiming

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(There is a previous closed pull for this #22431)
Implemented the following :
a) Added the maxSize Field to the PerformanceEntryList structure.
b) Implemented the clearResourceTimings, setResourceTimingBufferSize, onresourcetimingbufferfull fuctions for the Performance Structure according to the Interface Specification given at : https://w3c.github.io/resource-timing/#sec-extensions-performance-interface

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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 #22307 (GitHub issue number if applicable)

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- [ ] These changes do not require tests because ___

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components/script/dom/webidls/Performance.webidl

@@ -34,8 +34,15 @@ partial interface Performance {
   [Throws]
   void measure(DOMString measureName, optional DOMString startMark, optional DOMString endMark);
   void clearMeasures(optional DOMString measureName);
-};
 
+
+};
+//https://w3c.github.io/resource-timing/#sec-extensions-performance-interface
+partial interface Performance {
+  void clearResourceTimings ();
+  void setResourceTimingBufferSize (unsigned long maxSize);
+              attribute EventHandler onresourcetimingbufferfull;
+};
 // FIXME(avada): this should be deprecated, but is currently included for web compat
 // https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/NavigationTiming/Overview.html#performance-timing-attribute
 [Exposed=(Window)]