add guard for obsolete (non-functioning) replayClips

replayClips has been disabled (broken) for a while.
This CL just attempts to hide the api (will remove
once android's callsite is removed)

Bug: skia:
Change-Id: I35b412addfc0a08ea888a62609888b9b54dce2a6
Reviewed-on: https://skia-review.googlesource.com/11401
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
7 files changed