Index: ui/aura/root_window.cc |
diff --git a/ui/aura/root_window.cc b/ui/aura/root_window.cc |
index 8ae3b724a877a9d530408a240c5fe10e66af6726..e706ef0a2be1c15c16b0ff5260ff5a5442d1bc92 100644 |
--- a/ui/aura/root_window.cc |
+++ b/ui/aura/root_window.cc |
@@ -547,6 +547,7 @@ ui::EventTarget* RootWindow::GetParentTarget() { |
// RootWindow, ui::CompositorDelegate implementation: |
void RootWindow::ScheduleDraw() { |
+ DCHECK(!ui::Compositor::WasInitializedWithThread()); |
if (!defer_draw_scheduling_) { |
defer_draw_scheduling_ = true; |
MessageLoop::current()->PostTask( |