Merge "Add a comment on how to achieve shared_from_this for SharedRefBase."...

Merge "Add a comment on how to achieve shared_from_this for SharedRefBase." am: 3f285c72 am: fa653504 am: 847fe681 am: a268f078 am: d04c13c2

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



Change-Id: I6b5bf8439702c67549fa322ffb8cd0fba89994cc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>