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This change removes the unused NetLog and NetLogSource from
BluetoothDeviceWin and adds a few missing #includes.

Bug: 821766
Change-Id: I74e0f888398ced801072f25e8d90a8e338dc8e79
Reviewed-on: https://chromium-review.googlesource.com/968513
Commit-Queue: Jan Wilken Dörrie <jdoerrie@chromium.org>
Reviewed-by: Conley Owens <cco3@chromium.org>
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544152}