Manage OffscreenCanvasCompositorFrameSink lifetime explicitly

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 3ffe326790fc8c1f640813b8340a72b47370ae0e..fcee29df75c4cb148710266e4ffb22cf245a928b 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1218,7 +1218,10 @@ void RenderProcessHostImpl::RegisterMojoInterfaces() {
 
   AddUIThreadInterface(
       registry.get(),
-      base::Bind(&OffscreenCanvasCompositorFrameSinkProviderImpl::Create));
+      base::Bind(&RenderProcessHostImpl::
+                     CreateOffscreenCanvasCompositorFrameSinkProvider,
+                 base::Unretained(this)));
+
   AddUIThreadInterface(registry.get(),
                        base::Bind(&OffscreenCanvasSurfaceFactoryImpl::Create));
   AddUIThreadInterface(
@@ -1341,6 +1344,16 @@ void RenderProcessHostImpl::CreateMusGpuRequest(ui::mojom::GpuRequest request) {
   gpu_client_->Add(std::move(request));
 }
 
+void RenderProcessHostImpl::CreateOffscreenCanvasCompositorFrameSinkProvider(
+    blink::mojom::OffscreenCanvasCompositorFrameSinkProviderRequest request) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  if (!offscreen_canvas_provider_) {
+    offscreen_canvas_provider_.reset(
+        new OffscreenCanvasCompositorFrameSinkProviderImpl());
+  }
+  offscreen_canvas_provider_->Add(std::move(request));
+}
+
 void RenderProcessHostImpl::CreateStoragePartitionService(
     mojo::InterfaceRequest<mojom::StoragePartitionService> request) {
   // DO NOT REMOVE THIS COMMAND LINE CHECK WITHOUT SECURITY REVIEW!