Lazily initialize the D3D device in DisplayWGL. Change-Id: I3afe4c0619128d7063f49ed8c295d4b814193f84 Reviewed-on: https://chromium-review.googlesource.com/476930 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>