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

ui/ozone/public/surface_ozone_egl.h

Index: ui/ozone/public/surface_ozone_egl.h
diff --git a/ui/ozone/public/surface_ozone_egl.h b/ui/ozone/public/surface_ozone_egl.h
index fa7e43a3ef1ec86ccb1aad0524ab5ff5eb58a8f6..5a7e1069e6a420f3bcc5d6f735606f9adbbf4ecb 100644
--- a/ui/ozone/public/surface_ozone_egl.h
+++ b/ui/ozone/public/surface_ozone_egl.h
@@ -15,6 +15,7 @@ class VSyncProvider;
 }
 
 namespace ui {
+class NativePixmap;
 
 // The platform-specific part of an EGL surface.
 //
@@ -42,6 +43,21 @@ class OZONE_BASE_EXPORT SurfaceOzoneEGL {
   // outside of the sandbox, they must have been completed in
   // InitializeHardware. Returns an empty scoped_ptr on error.
   virtual scoped_ptr<gfx::VSyncProvider> CreateVSyncProvider() = 0;
+
+  // Sets the overlay plane to switch to at the next page flip.
+  // |plane_z_order| specifies the stacking order of the plane relative to the
+  // main framebuffer located at index 0.
+  // |plane_transform| specifies how the buffer is to be transformed during.
+  // composition.
+  // |buffer| to be presented by the overlay.
+  // |display_bounds| specify where it is supposed to be on the screen.
+  // |crop_rect| specifies the region within the buffer to be placed inside
+  // |display_bounds|.
+  virtual bool ScheduleOverlayPlane(int plane_z_order,
+                                    gfx::OverlayTransform plane_transform,
+                                    scoped_refptr<ui::NativePixmap> buffer,

[alexst (slow to review), 2014/07/04 01:31:49]

already in ui

+                                    const gfx::Rect& display_bounds,
+                                    const gfx::RectF& crop_rect) = 0;
 };
 
 }  // namespace ui