Reduce CPU texture usage in D3D11 where possible Change-Id: I3186d78fa0a5c676611806c6f553c5c7ad06f56a Reviewed-on: https://chromium-review.googlesource.com/212118 Tested-by: Austin Kinross <aukinros@microsoft.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>