const windowGlobal = context.currentWindowGlobal;
        if (!windowGlobal) {
          // Bail out if there is no window attached to the current context.
          return;
        }

        if (!windowGlobal.isProcessRoot) {
          // Bail out if this window global is not a process root.
          // MarionetteReftestChild::flushRendering will flush all same process
          // frames, so we only need to call flushRendering on process roots.
          return;
        }

        const reftestActor = windowGlobal.getActor("MarionetteReftest");
        await reftestActor.sendQuery("MarionetteReftestParent:flushRendering", {
          ignoreThrottledAnimations,
        });
      })
    );
  }
}
PK