The bug is marked as P3 or Feature. It should not be merged as M63 is in beta. 
Please contact the approriate milestone owner if you have questions.
Owners: cmasso@(Android), cmasso@(iOS), gkihumba@(ChromeOS), govind@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

CL to review: https://chromium-review.googlesource.com/c/chromium/src/+/764506

This bug requires manual review: M63 has already been promoted to the beta branch, so this requires manual review
Please contact the milestone owner if you have questions.
Owners: cmasso@(Android), cmasso@(iOS), gkihumba@(ChromeOS), govind@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/14a7cbfa5a684930c5b1f0f7fdd46eb4fc7fc203

commit 14a7cbfa5a684930c5b1f0f7fdd46eb4fc7fc203
Author: Xiaochu Liu <xiaochu@chromium.org>
Date: Mon Nov 13 22:15:13 2017

Block component updater in M63 for kernel 3.8 and 3.10

This is a temporary fix.

BUG= chromium:783939 
TEST=tested on kefka

Change-Id: I177b2b3887b307b63dfa0afe585b4471ddfc42d5
Reviewed-on: https://chromium-review.googlesource.com/745303
Reviewed-by: Bernie Thompson <bhthompson@chromium.org>
Reviewed-by: Greg Kerr <kerrnel@chromium.org>
Reviewed-by: Joshua Pawlicki <waffles@chromium.org>
Cr-Original-Commit-Position: refs/branch-heads/3202@{#780}
Cr-Original-Branched-From: fa6a5d87adff761bc16afc5498c3f5944c1daa68-refs/heads/master@{#499098}(cherry picked from commit ce1d259a434311632300857ffa1c1c655140b6f3)
Reviewed-on: https://chromium-review.googlesource.com/764506
Cr-Commit-Position: refs/branch-heads/3239@{#473}
Cr-Branched-From: adb61db19020ed8ecee5e91b1a0ea4c924ae2988-refs/heads/master@{#508578}
[modify] https://crrev.com/14a7cbfa5a684930c5b1f0f7fdd46eb4fc7fc203/chrome/browser/component_updater/cros_component_installer.cc

thanks all!