Merge "Add a comment on how to achieve shared_from_this for SharedRefBase." am: 3f285c72d6 am: fa65350424 am: 847fe68101 am: a268f078eb

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2116896

Change-Id: I304572f26b0589ed0a961ccf2b5afde953af3b77
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>