Simplify calls for scale factor

content/browser/compositor/mus_browser_compositor_output_surface.cc

Index: content/browser/compositor/mus_browser_compositor_output_surface.cc
diff --git a/content/browser/compositor/mus_browser_compositor_output_surface.cc b/content/browser/compositor/mus_browser_compositor_output_surface.cc
index dc72fd0059d193f385f3b01468ed4c503acbfbd9..e7421805379a576ea0c3b1c810acf506ec098009 100644
--- a/content/browser/compositor/mus_browser_compositor_output_surface.cc
+++ b/content/browser/compositor/mus_browser_compositor_output_surface.cc
@@ -17,7 +17,7 @@
 #include "services/ui/public/cpp/gpu/context_provider_command_buffer.h"
 #include "ui/aura/mus/window_port_mus.h"
 #include "ui/aura/window.h"
-#include "ui/display/screen.h"
+#include "ui/base/layout.h"
 #include "ui/gfx/geometry/dip_util.h"
 
 namespace content {
@@ -50,9 +50,8 @@ cc::BeginFrameSource* MusBrowserCompositorOutputSurface::GetBeginFrameSource() {
 void MusBrowserCompositorOutputSurface::SwapBuffers(
     cc::OutputSurfaceFrame frame) {
   cc::CompositorFrame ui_frame;
-  ui_frame.metadata.device_scale_factor = display::Screen::GetScreen()
-                                              ->GetDisplayNearestWindow(window_)
-                                              .device_scale_factor();
+  ui_frame.metadata.device_scale_factor =
+      ui::GetScaleFactorForNativeView(window_);
   ui_frame.metadata.latency_info = std::move(frame.latency_info);
   // Reset latency_info to known empty state after moving contents.
   frame.latency_info.clear();