Automated commit: libchrome r1329366 uprev

Merge with upstream commit 753f3e772ef130fcb67d86ecb8d08a75aa1f5f08

BUG=None
TEST=sudo emerge libchrome

Change-Id: I35702b6a31840ca53ee0820b11491cd481fbf550
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/libchrome/+/5721468
Commit-Queue: Brett Brotherton <bbrotherton@google.com>
Tested-by: ChromeOS Prod (Robot) <chromeos-ci-prod@chromeos-bot.iam.gserviceaccount.com>
Bot-Commit: ChromeOS Prod (Robot) <chromeos-ci-prod@chromeos-bot.iam.gserviceaccount.com>