UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

Steps to reproduce the problem:
See https://codereview.chromium.org/2725293003/

Presubmit requires OWNERS stamp from dependent component (in this case ./net) when there is only a simple ordering change of DPES file in depending component.

https://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presubmit/builds/378342

<<<<<<
** Presubmit ERRORS **
You need LGTM from owners of depends-on paths in DEPS that were modified in this CL:
    '+net',

What is the expected behavior?
Presubmit shouldn't warn

What went wrong?
Presubmit falsely determines that a simple ordering change requires OWNERS stamp.

Did this work before? N/A 

Chrome version: 56.0.2924.87  Channel: stable
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