Automated Commit: New LKGM version 10503.0.0 for chromeos.

BUG=762641
TBR=jennyz@google.com

Change-Id: Ic45259e8ce23a72d362727328c1b0d58afeba000
Reviewed-on: https://chromium-review.googlesource.com/970167
Commit-Queue: ChromeOS Commit Bot <chromeos-commit-bot@chromium.org>
Reviewed-by: ChromeOS Commit Bot <chromeos-commit-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544298}

chromeos/CHROMEOS_LKGM

-10500.0.0
+10503.0.0
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