Plumbs through screen size and scale factor to html_viewer

components/native_viewport/native_viewport_impl.h

Index: components/native_viewport/native_viewport_impl.h
diff --git a/components/native_viewport/native_viewport_impl.h b/components/native_viewport/native_viewport_impl.h
index 93d729b504ae29003d76fd51c450d8a5156106ee..503509df9f10992ab62f991e05e96b92624b3114 100644
--- a/components/native_viewport/native_viewport_impl.h
+++ b/components/native_viewport/native_viewport_impl.h
@@ -53,7 +53,8 @@ class NativeViewportImpl : public mojo::NativeViewport,
 
   // PlatformViewport::Delegate implementation.
   void OnMetricsChanged(mojo::ViewportMetricsPtr metrics) override;
-  void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget) override;
+  void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget,
+                                    float device_pixel_ratio) override;
   void OnAcceleratedWidgetDestroyed() override;
   bool OnEvent(mojo::EventPtr event) override;
   void OnDestroyed() override;