The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b373c0529ac248eb0cc1841e61e6de638da18158

commit b373c0529ac248eb0cc1841e61e6de638da18158
Author: Ran Ji <ranj@chromium.org>
Date: Tue Nov 07 17:23:58 2017

Set org.chromium.chrome as a browser which supports WebAPKs

Bug:  748606 
Change-Id: I5efc192fc24831899c0b3d36728544c7307e0210
Reviewed-on: https://chromium-review.googlesource.com/755097
Commit-Queue: Ran Ji <ranj@chromium.org>
Reviewed-by: Peter Kotwicz <pkotwicz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#514497}
[modify] https://crrev.com/b373c0529ac248eb0cc1841e61e6de638da18158/chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/WebApkUtils.java