Vulkan: Rename CommandBufferOwner to RenderPassOwner It's really only used to track the render pass command buffer. The change is made in preparation for compute, where the dispatcher command buffer can change without affecting the render pass. Bug: angleproject:3562 Change-Id: Ia8246de731d5c6a272fa17d6f8952dc981eca36e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1703523 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>