Remove fullscreen_wayland.cc because it is implemented in upstream.

BUG=https://github.com/01org/ozone-wayland/issues/182
Move BrowserDesktopWindowTreeHostOzone inside ozone.

It is easier to maintain this class.
patches: Export GpuProcessHost::AddFilter for component build

It's known by Kalyan and he will resolve it correctly.

BUG=https://github.com/01org/ozone-wayland/issues/24