GitLab

This change implements initiating GATT connections for WinRT. While
currently no GATT discovery is attempted, this will be provided in a
future CL. GATT connections are created by obtaining an instance of
BluetoothLEDevice.

Bug: 821766
Change-Id: I7f20127a84b781859300af18b31da0e9ee24a32b
Reviewed-on: https://chromium-review.googlesource.com/1090217
Commit-Queue: Jan Wilken Dörrie <jdoerrie@chromium.org>
Reviewed-by: Giovanni Ortuño Urquidi <ortuno@chromium.org>
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#571156}