Merge "SF: always preallocate the client composition buffers" into sc-dev am: a8f9cdbc77 am: 16855648e4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/15071036

Change-Id: I145bce7aa7eed8ff56ac4b8f13be2a2744873e1c