ozone: Add OzoneWindowFactory & OzoneWindow

ui/compositor/test/test_compositor_host_ozone.cc

Index: ui/compositor/test/test_compositor_host_ozone.cc
diff --git a/ui/compositor/test/test_compositor_host_ozone.cc b/ui/compositor/test/test_compositor_host_ozone.cc
index 78431bee417d94da5d4cb54a74cc68993ad7a164..b70be171e7fcd07e98fe0af9ba103e611eee1197 100644
--- a/ui/compositor/test/test_compositor_host_ozone.cc
+++ b/ui/compositor/test/test_compositor_host_ozone.cc
@@ -12,6 +12,7 @@
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "ui/compositor/compositor.h"
+#include "ui/gfx/ozone/surface_factory_ozone.h"
 #include "ui/gfx/rect.h"
 
 namespace ui {
@@ -48,7 +49,8 @@ void TestCompositorHostOzone::Show() {
   // with a non-0 widget.
   // TODO(rjkroege): Use a "real" ozone widget when it is
   // available: http://crbug.com/255128
-  compositor_.reset(new ui::Compositor(1));
+  compositor_.reset(new ui::Compositor(
+        gfx::kDefaultAcceleratedWidgetForSingleWindow));
   compositor_->SetScaleAndSize(1.0f, bounds_.size());
 }