Merge "Fix implicit cast from ssize_t to size_t in KeyedVector.h" am: a14beb2dbc am: f4d3b9e85f am: 272d5034c2 am: 88f61126e5

Original change: https://android-review.googlesource.com/c/platform/system/core/+/1715473

Change-Id: I4165604813f52d37862f618fae684fed78e9f495