cef/patch/patches/browser_compositor_mac.patch

diff --git content/browser/renderer_host/browser_compositor_view_mac.h content/browser/renderer_host/browser_compositor_view_mac.h
index 091f34477c01..44002b362be7 100644
--- content/browser/renderer_host/browser_compositor_view_mac.h
+++ content/browser/renderer_host/browser_compositor_view_mac.h
@@ -55,11 +55,13 @@ class CONTENT_EXPORT BrowserCompositorMac : public DelegatedFrameHostClient {
 
   // These will not return nullptr until Destroy is called.
   DelegatedFrameHost* GetDelegatedFrameHost();
+  ui::Layer* GetRootLayer() { return root_layer_.get(); }
 
   // Ensure that the currect compositor frame be cleared (even if it is
   // potentially visible).
   void ClearCompositorFrame();
 
+  ui::Compositor* GetCompositor();
   gfx::AcceleratedWidget GetAcceleratedWidget();
   void DidCreateNewRendererCompositorFrameSink(
       viz::mojom::CompositorFrameSinkClient* renderer_compositor_frame_sink);
diff --git content/browser/renderer_host/browser_compositor_view_mac.mm content/browser/renderer_host/browser_compositor_view_mac.mm
index f459dc4ff03b..142e66948c3b 100644
--- content/browser/renderer_host/browser_compositor_view_mac.mm
+++ content/browser/renderer_host/browser_compositor_view_mac.mm
@@ -208,6 +208,12 @@ BrowserCompositorMac::~BrowserCompositorMac() {
     g_spare_recyclable_compositors.Get().clear();
 }
 
+ui::Compositor* BrowserCompositorMac::GetCompositor() {
+  if (recyclable_compositor_)
+    return recyclable_compositor_->compositor();
+  return nullptr;
+}
+
 gfx::AcceleratedWidget BrowserCompositorMac::GetAcceleratedWidget() {
   if (recyclable_compositor_) {
     return recyclable_compositor_->accelerated_widget_mac()
diff --git ui/accelerated_widget_mac/accelerated_widget_mac.mm ui/accelerated_widget_mac/accelerated_widget_mac.mm
index 8306398431d9..5ab4fef9ac0f 100644
--- ui/accelerated_widget_mac/accelerated_widget_mac.mm
+++ ui/accelerated_widget_mac/accelerated_widget_mac.mm
@@ -71,6 +71,10 @@ void AcceleratedWidgetMac::SetNSView(AcceleratedWidgetMacNSView* view) {
   DCHECK(view && !view_);
   view_ = view;
 
+  // Will be nullptr for CEF.
+  if (!view_->AcceleratedWidgetGetNSView())
+    return;
+
   CALayer* background_layer = [view_->AcceleratedWidgetGetNSView() layer];
   DCHECK(background_layer);
   [flipped_layer_ setBounds:[background_layer bounds]];