Merge pull request #15290 from dmarcos/frame

Pass XRFrame reference to client render loop.

src/renderers/webxr/WebXRManager.js

@@ -353,7 +353,7 @@ function WebXRManager( renderer, gl ) {
 
 		}
 
-		if ( onAnimationFrameCallback ) onAnimationFrameCallback( time );
+		if ( onAnimationFrameCallback ) onAnimationFrameCallback( time, frame );
 
 	}