Change NativeBufferOzone to be an object and move the overlay calls to the surface object.

ui/ozone/platform/egltest/ozone_platform_egltest.cc

Index: ui/ozone/platform/egltest/ozone_platform_egltest.cc
diff --git a/ui/ozone/platform/egltest/ozone_platform_egltest.cc b/ui/ozone/platform/egltest/ozone_platform_egltest.cc
index 8179aa49135b238f959b17d42feb93c964787e6e..17c341f007d082ed5d876eaf4b05dd00e8108cab 100644
--- a/ui/ozone/platform/egltest/ozone_platform_egltest.cc
+++ b/ui/ozone/platform/egltest/ozone_platform_egltest.cc
@@ -72,6 +72,14 @@ class SurfaceOzoneEgltest : public SurfaceOzoneEGL {
     return scoped_ptr<gfx::VSyncProvider>();
   }
 
+  virtual bool ScheduleOverlayPlane(int plane_z_order,
+                                    gfx::OverlayTransform plane_transform,
+                                    scoped_refptr<ui::NativePixmap> buffer,
+                                    const gfx::Rect& display_bounds,
+                                    const gfx::RectF& crop_rect) OVERRIDE {
+    return false;
+  }
+
  private:
   LibeglplatformShimLoader* eglplatform_shim_;
   intptr_t native_window_;