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

ui/ozone/public/surface_ozone_egl.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_OZONE_PUBLIC_SURFACE_OZONE_EGL_H_
 #define UI_OZONE_PUBLIC_SURFACE_OZONE_EGL_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/ozone/ozone_base_export.h"
 
 namespace gfx {
 class Size;
 class VSyncProvider;
 }
 
 namespace ui {
+class NativePixmap;
 
 // The platform-specific part of an EGL surface.
 //
 // This class owns any bits that the ozone implementation needs freed when
 // the EGL surface is destroyed.
 class OZONE_BASE_EXPORT SurfaceOzoneEGL {
  public:
   virtual ~SurfaceOzoneEGL() {}
 
   // Returns the EGL native window for rendering onto this surface.
   // This can be used to to create a GLSurface.
   virtual intptr_t /* EGLNativeWindowType */ GetNativeWindow() = 0;
 
   // Attempts to resize the EGL native window to match the viewport
   // size.
   virtual bool ResizeNativeWindow(const gfx::Size& viewport_size) = 0;
 
   // Called after we swap buffers. This is usually a no-op but can
   // be used to present the new front buffer if the platform requires this.
   virtual bool OnSwapBuffers() = 0;
 
   // Returns a gfx::VsyncProvider for this surface. Note that this may be
   // called after we have entered the sandbox so if there are operations (e.g.
   // opening a file descriptor providing vsync events) that must be done
   // 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<NativePixmap> buffer,
+                                    const gfx::Rect& display_bounds,
+                                    const gfx::RectF& crop_rect) = 0;
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PUBLIC_SURFACE_OZONE_EGL_H_