swapchain: Implement VK_GOOGLE_surfaceless_query

This extension allows ANGLE to call Vulkan WSI queries before it has a
VkSurfaceKHR.

Bug: 203826952
Test: Test with ANGLE EGLConfig-generation code
Change-Id: I7e53a8a28157023658baac0778033159bdd22850
Merged-In: I7e53a8a28157023658baac0778033159bdd2285e
diff --git a/vulkan/libvulkan/driver_gen.h b/vulkan/libvulkan/driver_gen.h
index 047e774..8153fe2 100644
--- a/vulkan/libvulkan/driver_gen.h
+++ b/vulkan/libvulkan/driver_gen.h
@@ -41,6 +41,7 @@
         EXT_hdr_metadata,
         EXT_swapchain_colorspace,
         GOOGLE_display_timing,
+        GOOGLE_surfaceless_query,
         KHR_android_surface,
         KHR_get_surface_capabilities2,
         KHR_incremental_present,