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The file names read from /proc/self/maps can contain a special " (deleted)"
suffix to indicate that the file has been deleted (unlinked). This is expected
and should not trigger a LOG(WARNING).

Change-Id: Ia96b3bf1894c8fbd6bfa0c217bc8a01bbb59d750
Reviewed-on: https://chromium-review.googlesource.com/1186622Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#586334}