* Timer and path utils are done.
* Window only implements initialize and setVisible

BUG=angleproject:892

Change-Id: I3f49b68ef9ec5be324b25e211199bac2953ae11e
Reviewed-on: https://chromium-review.googlesource.com/269520Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>