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These files are shared by chrome/browser/media and components/exo, but
the latter cannot depend on chrome/browser/chromeos.

Bug: 929449
Test: Build
Change-Id: Idc6d8f36edf7298f912c9be718a5c2fed9acf356
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1681275Reviewed-by: Mitsuru Oshima <oshima@chromium.org>
Reviewed-by: Sergey Ulanov <sergeyu@chromium.org>
Commit-Queue: Dominik Laskowski <domlaskowski@chromium.org>
Cr-Commit-Position: refs/heads/master@{#673483}