FF98 WebVR support disabled by default (#14821)

* FF98 WebVR support disabled by default

* Mark all affected apis as non-standard

* Update support statements to match VRDisplay

* FF_android - fix up subfeatures to match parent

Author: hamishwillee

api/Gamepad.json

@@ -235,12 +235,24 @@
               }
             ],
             "firefox": [
+              {
+                "version_added": "98",
+                "flags": [
+                  {
+                    "type": "preference",
+                    "name": "dom.vr.enabled",
+                    "value_to_set": "true"
+                  }
+                ]
+              },
               {
                 "version_added": "55",
+                "version_removed": "98",
                 "notes": "Windows support was enabled in Firefox 55."
               },
               {
                 "version_added": "64",
+                "version_removed": "98",
                 "notes": "macOS support was enabled in Firefox 64."
               }
             ],
@@ -275,7 +287,7 @@
           },
           "status": {
             "experimental": true,
-            "standard_track": true,
+            "standard_track": false,
             "deprecated": true
           }
         }

api/Navigator.json

@@ -69,12 +69,24 @@
               "notes": "WebVR content requires a Windows Mixed Reality headset or the Windows Mixed Reality Portal Simulator."
             },
             "firefox": [
+              {
+                "version_added": "98",
+                "flags": [
+                  {
+                    "type": "preference",
+                    "name": "dom.vr.enabled",
+                    "value_to_set": "true"
+                  }
+                ]
+              },
               {
                 "version_added": "55",
+                "version_removed": "98",
                 "notes": "Windows support was enabled in Firefox 55."
               },
               {
                 "version_added": "64",
+                "version_removed": "98",
                 "notes": "macOS support was enabled in Firefox 64."
               }
             ],
@@ -107,7 +119,7 @@
           },
           "status": {
             "experimental": true,
-            "standard_track": true,
+            "standard_track": false,
             "deprecated": true
           }
         },
@@ -1641,12 +1653,24 @@
               "version_removed": "79"
             },
             "firefox": [
+              {
+                "version_added": "98",
+                "flags": [
+                  {
+                    "type": "preference",
+                    "name": "dom.vr.enabled",
+                    "value_to_set": "true"
+                  }
+                ]
+              },
               {
                 "version_added": "55",
+                "version_removed": "98",
                 "notes": "Windows support was enabled in Firefox 55."
               },
               {
                 "version_added": "64",
+                "version_removed": "98",
                 "notes": "macOS support was enabled in Firefox 64."
               }
             ],
@@ -1679,7 +1703,7 @@
           },
           "status": {
             "experimental": true,
-            "standard_track": true,
+            "standard_track": false,
             "deprecated": true
           }
         }