Set PendingIntent mutability for AudioFocusGrabberListenerService

We never look at anything but the Action on this PendingIntent, so it
should be safe to mark this one as Immutable.

Bug: 1163529
Change-Id: I627a144e23fa2e76cbcf5d92f11134496a573299
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2702731
Auto-Submit: Michael Thiessen <mthiesse@chromium.org>
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#855056}
GitOrigin-RevId: 2a04ea68d5f6c37be865e57f7ca7a0daff29aa75
1 file changed