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Ash related services, such as shortcut-viewer, create various objects that
read command line flags (such as ui::Compositor). This makes such services
copy the command line flags from chrome. Long term we shold move to a whitelist,
but shorterm not copying all flags is causing display problems for some devices.

BUG=906954,905569
TEST=none

Change-Id: I408798f0c0a6145b84a926f464a6d76b3a116bb9
Reviewed-on: https://chromium-review.googlesource.com/c/1346690Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Commit-Queue: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610164}