wayland: Commit surface from cairo context

wayland: Commit surface from cairo context

In order to make the cairo renderer/context behave more similar to how
the OpenGL and Vulkan renderer/context behaves, request a frame callback
and commit in the end frame vfunc.

This means the end frame vfunc in cairo does

 * attach buffer
 * request frame callback
 * sync surface state
 * commit

Where as e.g. the OpenGL version of the same flow does

 * attach buffer
 * request frame callback
 * sync surface state
 * eglSwapBuffers()

where eglSwapBuffers() indirectly calls wl_surface_commit().