Vulkan: Process dirty framebuffers first The currently bound framebuffer affects some dirty bits. This means that processing those dirty bits temporarily use data from a framebuffer that's about to be changed. At best, that creates unnecessary dirty bits in the Vulkan pipeline description. Bug: angleproject:3204 Change-Id: Ie001d6c8fcc61af2e78cf2cb58a1691d8b735ff3 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1639750 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>