[GeometryInterface] Enable GeometryInterfaces by default.

third_party/WebKit/Source/platform/RuntimeEnabledFeatures.json5

 {
   // http://dev.chromium.org/blink/runtime-enabled-features
   //
   // This list is used to generate RuntimeEnabledFeatures.h/cpp which contains
   // a class that stores static enablers for all experimental features.
 
   parameters: {
     // Each feature can be assigned a "status":
     // * status=stable: Enable this in all Blink configurations. We are
     //   committed to these APIs indefinitely.
@@ skipping 464 matching lines @@
       status: "test",
     },
     {
       name: "GamepadExtensions",
       origin_trial_feature_name: "WebVR1.1",
       status: "test",
     },
     {
       name: "GeometryInterfaces",
       implied_by: ["CompositorWorker"],
-      status: "experimental",
+      status: "stable",
     },
     {
       name: "GetUserMedia",
       status: "stable",
     },
     {
       name: "GlobalCacheStorage",
       status: "stable",
     },
     {
@@ skipping 638 matching lines @@
     {
       name: "Worklet",
       status: "experimental",
     },
     {
       name: "XSLT",
       status: "stable",
     },
   ],
 }