Merge "simpleperf: fix a segfault caused by CloseEventFiles." am: 36ba9c0a85

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/2052024

Change-Id: Ifd0f1df822d6026f67486fc403fde03ebc842c90
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>