diff --git a/libcef/browser/osr/render_widget_host_view_osr.cc b/libcef/browser/osr/render_widget_host_view_osr.cc
index 4f7c492b3..31c221746 100644
--- a/libcef/browser/osr/render_widget_host_view_osr.cc
+++ b/libcef/browser/osr/render_widget_host_view_osr.cc
@@ -656,8 +656,8 @@ gfx::Size CefRenderWidgetHostViewOSR::GetRequestedRendererSize() const {
 }
 
 gfx::Size CefRenderWidgetHostViewOSR::GetPhysicalBackingSize() const {
-  return gfx::ConvertSizeToPixel(current_device_scale_factor_,
-                                 GetRequestedRendererSize());
+  return gfx::ScaleToCeiledSize(GetRequestedRendererSize(),
+                                current_device_scale_factor_);
 }
 
 void CefRenderWidgetHostViewOSR::CopyFromSurface(