Automated Commit: LKGM 15474.12.0 for chromeos.

Uploaded by https://ci.chromium.org/b/8779353757300649377

Change-Id: Ib6deff7c9bcfb33d295d7800e148590925b5aad5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4584384
Commit-Queue: ChromeOS bot <3su6n15k.default@developer.gserviceaccount.com>
Bot-Commit: ChromeOS bot <3su6n15k.default@developer.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/5790@{#306}
Cr-Branched-From: 1d71a33-refs/heads/main@{#1148114}

chromeos/CHROMEOS_LKGM

@@ -1 +1 @@
-15474.11.0
+15474.12.0