  #include "ui/compositor/compositor.h"
  #include "ui/compositor/compositor_observer.h"
  
-@@ -47,8 +48,8 @@ class BrowserCompositorMacClient {
+@@ -43,8 +44,8 @@ class BrowserCompositorMacClient {
  //   is visible.
  // - The RenderWidgetHostViewMac that is used to display these frames is
  //   attached to the NSView hierarchy of an NSWindow.

 ui::AcceleratedWidgetMac* BrowserCompositorMac::GetAcceleratedWidgetMac() {
   if (recyclable_compositor_)
     return recyclable_compositor_->accelerated_widget_mac();
@@ -414,8 +420,13 @@ void OnCompositingShuttingDown(ui::Compositor* compositor) override {}
 }
 
 gfx::Size BrowserCompositorMac::DelegatedFrameHostDesiredSizeInDIP() const {

  public:
   BrowserCompositorMac(
       ui::AcceleratedWidgetMacNSView* accelerated_widget_mac_ns_view,
@@ -55,9 +56,11 @@ class BrowserCompositorMac : public cc::BeginFrameObserver,
 
   // These will not return nullptr until Destroy is called.
   DelegatedFrameHost* GetDelegatedFrameHost();
