add performanceservertiming (#984)

Author: keithamus

baselines/dom.generated.d.ts

@@ -11537,6 +11537,7 @@ interface PerformanceResourceTiming extends PerformanceEntry {
     readonly responseEnd: number;
     readonly responseStart: number;
     readonly secureConnectionStart: number;
+    readonly serverTiming: ReadonlyArray<PerformanceServerTiming>;
     readonly transferSize: number;
     readonly workerStart: number;
     toJSON(): any;
@@ -11547,6 +11548,18 @@ declare var PerformanceResourceTiming: {
     new(): PerformanceResourceTiming;
 };
 
+interface PerformanceServerTiming {
+    readonly description: string;
+    readonly duration: number;
+    readonly name: string;
+    toJSON(): any;
+}
+
+declare var PerformanceServerTiming: {
+    prototype: PerformanceServerTiming;
+    new(): PerformanceServerTiming;
+};
+
 /** A legacy interface kept for backwards compatibility and contains properties that offer performance timing information for various events which occur during the loading and use of the current page. You get a PerformanceTiming object describing your page using the window.performance.timing property.
  * @deprecated This interface is deprecated in the Navigation Timing Level 2 specification. Please use the PerformanceNavigationTiming interface instead.
  */

baselines/webworker.generated.d.ts

@@ -2585,6 +2585,7 @@ interface PerformanceResourceTiming extends PerformanceEntry {
     readonly responseEnd: number;
     readonly responseStart: number;
     readonly secureConnectionStart: number;
+    readonly serverTiming: ReadonlyArray<PerformanceServerTiming>;
     readonly transferSize: number;
     readonly workerStart: number;
     toJSON(): any;
@@ -2595,6 +2596,18 @@ declare var PerformanceResourceTiming: {
     new(): PerformanceResourceTiming;
 };
 
+interface PerformanceServerTiming {
+    readonly description: string;
+    readonly duration: number;
+    readonly name: string;
+    toJSON(): any;
+}
+
+declare var PerformanceServerTiming: {
+    prototype: PerformanceServerTiming;
+    new(): PerformanceServerTiming;
+};
+
 interface PermissionStatusEventMap {
     "change": Event;
 }

inputfiles/idl/Server Timing.widl

@@ -0,0 +1,12 @@
+[Exposed=(Window,Worker)]
+interface PerformanceServerTiming {
+  readonly attribute DOMString name;
+  readonly attribute DOMHighResTimeStamp duration;
+  readonly attribute DOMString description;
+  [Default] object toJSON();
+};
+
+[Exposed=(Window,Worker)]
+partial interface PerformanceResourceTiming {
+  readonly attribute FrozenArray<PerformanceServerTiming> serverTiming;
+};

inputfiles/idlSources.json

@@ -462,6 +462,10 @@
         "url": "https://www.w3.org/TR/selection-api/",
         "title": "Selection"
     },
+    {
+        "url": "https://www.w3.org/TR/server-timing/",
+        "title": "Server Timing"
+    },
     {
         "url": "https://w3c.github.io/ServiceWorker/",
         "title": "Service Workers"