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This also fixes another related bug where the filename was incorrect in
the notification being displayed on Q. The issue is that Q already has
the location in the form of a content URI, so we can just use that
directly.

Bug: 1111448
Change-Id: I20485efab2a93abd439bd972d00bde908183aa2f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2330943Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Commit-Queue: Clark DuVall <cduvall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#793611}