When shrinking a vector, we might reallocate the buffer
if the current capacity is too large, or we might reuse
the existing buffer.
Never reallocate the buffer if the current capacity is
already at the minimum (i.e. we won't actually shrink by
reallocating).
Bug: 370649413
Change-Id: I665037ed2a8621a82f2b58bcc834934de0761f34
Flag: EXEMPT bugfix
Tested: see b/370649413#comment6
Dependencies of libbinder, so we can build
a core libbinder library, libbinder_sdk.
This is preparing the way to move this part of libbinder
together with binder code into a single project.
Bug: 302720583
Change-Id: Icff078ac6e36c7f2b91cf815d5b9ed19b2e706e1
