Change D3DAttachmentViewManager to handle all CPU descriptors

Change-Id: I6af3673a9dedf0a5acfbd588bfbbb447b5c68013
Bug: skia:9935
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/292576
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
6 files changed