Merge "SF: always preallocate the client composition buffers" into sc-dev am: a8f9cdbc am: 16855648 am: 502a352c

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

Change-Id: I50acfda928dcaf97f11438280f5bf35e894545c7