Implement aura::WindowPortMus::CreateCompositorFrameSink()

ui/aura/window_port_for_shutdown.cc

Index: ui/aura/window_port_for_shutdown.cc
diff --git a/ui/aura/window_port_for_shutdown.cc b/ui/aura/window_port_for_shutdown.cc
index 78ca06cb7e8226674f9b99541487f729951c3993..658cfd59fc8280eb5af30ace7da92754966b8bbd 100644
--- a/ui/aura/window_port_for_shutdown.cc
+++ b/ui/aura/window_port_for_shutdown.cc
@@ -48,7 +48,9 @@ void WindowPortForShutdown::OnPropertyChanged(
     std::unique_ptr<ui::PropertyData> data) {}
 
 std::unique_ptr<cc::CompositorFrameSink>
-WindowPortForShutdown::CreateCompositorFrameSink() {
+WindowPortForShutdown::CreateCompositorFrameSink(
+    scoped_refptr<cc::ContextProvider> context_provider,
+    gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager) {
   return nullptr;
 }