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This reverts commit 8bc1fa58 because
once again the PolicyDeviceDisplayResolution tests are flaky.
The root cause needs to be investiated a tracking bug is filed #1051982.

R=marcgrimme

Bug: 1050303
Change-Id: Icd1cdb3f29dbb2fb78cea769c7fa36906405f7d3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2054803Reviewed-by: Maksim Ivanov <emaxx@chromium.org>
Commit-Queue: Marc Grimme <marcgrimme@chromium.org>
Cr-Commit-Position: refs/heads/master@{#741162}