The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/871f84f2cb44770afc01a6567e26ea93a0cdcf2f

commit 871f84f2cb44770afc01a6567e26ea93a0cdcf2f
Author: Ben Wells <benwells@chromium.org>
Date: Wed Nov 21 05:59:06 2018

Add test for check_webapp_display_manifest being false.

This option was added recently without any tests. This change adds a
simple test for this.

Bug:  902937 
Change-Id: If35b91e8c43db434921a0a6b01beb708957aecb3
Reviewed-on: https://chromium-review.googlesource.com/c/1343813
Commit-Queue: Ben Wells <benwells@chromium.org>
Reviewed-by: Dominick Ng <dominickn@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609925}
[modify] https://crrev.com/871f84f2cb44770afc01a6567e26ea93a0cdcf2f/chrome/browser/installable/installable_manager_unittest.cc