'checkResourceInUseAndRefreshDeps' can be implemented using other
APIs. This simplifies the API surface in CommandGraphResource.

Bug: angleproject:2539
Change-Id: I55350ab352c50961736327a867e8403d3b38506b
Reviewed-on: https://chromium-review.googlesource.com/1052070
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Luc Ferron <lucferron@chromium.org>
Reviewed-by: Frank Henigman <fjhenigman@chromium.org>