Allow requesting permission for device orientation (#746)

* Allow requesting permission for device orientation

iOS Safari 13 Beta 6 has shipped with permission API for DeviceMotionEvent and DeviceOrientationEvent, see:
https://developer.apple.com/documentation/safari_release_notes/safari_13_beta_6_release_notes#3314664

* Update generated d.ts file

Author: kripod

baselines/dom.generated.d.ts

@@ -4416,6 +4416,7 @@ interface DeviceMotionEvent extends Event {
 declare var DeviceMotionEvent: {
     prototype: DeviceMotionEvent;
     new(type: string, eventInitDict?: DeviceMotionEventInit): DeviceMotionEvent;
+    requestPermission(): Promise<PermissionState>;
 };
 
 interface DeviceMotionEventAcceleration {
@@ -4441,6 +4442,7 @@ interface DeviceOrientationEvent extends Event {
 declare var DeviceOrientationEvent: {
     prototype: DeviceOrientationEvent;
     new(type: string, eventInitDict?: DeviceOrientationEventInit): DeviceOrientationEvent;
+    requestPermission(): Promise<PermissionState>;
 };
 
 /** Provides information about the rate at which the device is rotating around all three axes. */

inputfiles/removedTypes.json

@@ -145,20 +145,6 @@
                     }
                 }
             },
-            "DeviceMotionEvent": {
-                "methods": {
-                    "method": {
-                        "requestPermission": null
-                    }
-                }
-            },
-            "DeviceOrientationEvent": {
-                "methods": {
-                    "method": {
-                        "requestPermission": null
-                    }
-                }
-            },
             "FederatedCredential": null,
             "HTMLAreasCollection": null,
             "HTMLBodyElement": {