Do not set OnClickListener until ListMenuButtonDelegate is set

1. Do not set delegate inside #onFinishInflate
2. Allow clients to disable overriding onClickListener

Bug: 1301805
Change-Id: Idaf9453f426b128c58aeee643e3ce0351b1a19bf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3509075


Reviewed-by: Theresa Sullivan <twellington@chromium.org>
Commit-Queue: Lijin Shen <lazzzis@google.com>
Cr-Commit-Position: refs/heads/main@{#978769}