Add support to send optimal format as part of ScheduleOverlayPlane

ui/ozone/demo/surfaceless_gl_renderer.cc

Index: ui/ozone/demo/surfaceless_gl_renderer.cc
diff --git a/ui/ozone/demo/surfaceless_gl_renderer.cc b/ui/ozone/demo/surfaceless_gl_renderer.cc
index 9e0f894a01cc654eff2878c968ec34f990964bb6..859ede1fc5cee32e8a3efe137c9c3edf8d1996bc 100644
--- a/ui/ozone/demo/surfaceless_gl_renderer.cc
+++ b/ui/ozone/demo/surfaceless_gl_renderer.cc
@@ -109,9 +109,10 @@ void SurfacelessGlRenderer::RenderFrame() {
   glClearColor(1 - fraction, 0.0, fraction, 1.0);
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
-  surface_->ScheduleOverlayPlane(0, gfx::OVERLAY_TRANSFORM_NONE,
-                                 buffers_[back_buffer_]->image(),
-                                 gfx::Rect(size_), gfx::RectF(0, 0, 1, 1));
+  surface_->ScheduleOverlayPlane(
+      0, gfx::OVERLAY_TRANSFORM_NONE, gfx::BufferFormat::BGRX_8888,
+      buffers_[back_buffer_]->image(), gfx::Rect(size_), gfx::RectF(0, 0, 1, 1),
+      true);
   back_buffer_ ^= 1;
   surface_->SwapBuffersAsync(
       base::Bind(&SurfacelessGlRenderer::PostRenderFrameTask,