From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
Date: Thu, 20 Sep 2018 17:45:14 -0700
Subject: browser_compositor_mac.patch


diff --git a/content/browser/renderer_host/browser_compositor_view_mac.h b/content/browser/renderer_host/browser_compositor_view_mac.h
index de89d291e5cbc0981cf06170ed35502a1239136d..656f6c38d55d9f9af569bc772254ca13c279eeab 100644
--- a/content/browser/renderer_host/browser_compositor_view_mac.h
+++ b/content/browser/renderer_host/browser_compositor_view_mac.h
@@ -60,6 +60,8 @@ class CONTENT_EXPORT BrowserCompositorMac : public DelegatedFrameHostClient,
   // These will not return nullptr until Destroy is called.
   DelegatedFrameHost* GetDelegatedFrameHost();
 
+  ui::Layer* GetRootLayer() { return root_layer_.get(); }
+
   // Force a new surface id to be allocated. Returns true if the
   // RenderWidgetHostImpl sent the resulting surface id to the renderer.
   bool ForceNewSurfaceId();
@@ -68,6 +70,7 @@ class CONTENT_EXPORT BrowserCompositorMac : public DelegatedFrameHostClient,
   // no valid frame is available.
   const gfx::CALayerParams* GetLastCALayerParams() const;
 
+  ui::Compositor* GetCompositor();
   void DidCreateNewRendererCompositorFrameSink(
       viz::mojom::CompositorFrameSinkClient* renderer_compositor_frame_sink);
   void OnDidNotProduceFrame(const viz::BeginFrameAck& ack);
diff --git a/content/browser/renderer_host/browser_compositor_view_mac.mm b/content/browser/renderer_host/browser_compositor_view_mac.mm
index 4b3f3c7e97e73ad6d0166ad114f4168d9ed00e11..59e58d693c971742951434f6582140d9179235f2 100644
--- a/content/browser/renderer_host/browser_compositor_view_mac.mm
+++ b/content/browser/renderer_host/browser_compositor_view_mac.mm
@@ -80,6 +80,12 @@ BrowserCompositorMac::~BrowserCompositorMac() {
   DCHECK_EQ(1u, num_erased);
 }
 
+ui::Compositor* BrowserCompositorMac::GetCompositor() {
+  if (recyclable_compositor_)
+    return recyclable_compositor_->compositor();
+  return nullptr;
+}
+
 DelegatedFrameHost* BrowserCompositorMac::GetDelegatedFrameHost() {
   DCHECK(delegated_frame_host_);
   return delegated_frame_host_.get();
