Add support to send optimal format as part of ScheduleOverlayPlane

ui/ozone/public/native_pixmap.h

Index: ui/ozone/public/native_pixmap.h
diff --git a/ui/ozone/public/native_pixmap.h b/ui/ozone/public/native_pixmap.h
index becb85a6dbb39abcacd382bbb3f013baaae89925..58851828c96eadd7420929a57dce730e9ca8a46f 100644
--- a/ui/ozone/public/native_pixmap.h
+++ b/ui/ozone/public/native_pixmap.h
@@ -7,6 +7,7 @@
 
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
+#include "ui/gfx/buffer_types.h"
 #include "ui/gfx/native_pixmap_handle_ozone.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/overlay_transform.h"
@@ -36,6 +37,8 @@ class NativePixmap : public base::RefCountedThreadSafe<NativePixmap> {
   // main framebuffer located at index 0.
   // |plane_transform| specifies how the buffer is to be transformed during.
   // composition.
+  // |storage_format| specifies the optimal storage format which can be
+  // supported by the platform 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
@@ -44,8 +47,10 @@ class NativePixmap : public base::RefCountedThreadSafe<NativePixmap> {
   virtual bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
                                     int plane_z_order,
                                     gfx::OverlayTransform plane_transform,
+                                    gfx::BufferFormat storage_format,
                                     const gfx::Rect& display_bounds,
-                                    const gfx::RectF& crop_rect) = 0;
+                                    const gfx::RectF& crop_rect,
+                                    bool handle_scaling) = 0;
 
   // This represents a callback function pointing to processing unit like VPP to
   // do post-processing operations like scaling and color space conversion on