x11-libs/libxcb: Uprev to 1.15-r1

BUG=none
TEST=CQ passes

Change-Id: I45fcbf6dbe064c58fb3ebc93edcb83c7e2e1bb09
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/4008612
Commit-Queue: Manoj Gupta <manojgupta@chromium.org>
Tested-by: Matt Turner <msturner@google.com>
Auto-Submit: Matt Turner <msturner@google.com>
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
4 files changed