aura: Destroy the compositor before destroying the backing window.

ui/views/widget/desktop_aura/desktop_root_window_host_win.cc

Index: ui/views/widget/desktop_aura/desktop_root_window_host_win.cc
diff --git a/ui/views/widget/desktop_aura/desktop_root_window_host_win.cc b/ui/views/widget/desktop_aura/desktop_root_window_host_win.cc
index 0a8596d836d1e97a22391e7966aa3e593359284e..0670007ef4104fd9e2947b25b9a4637adf48044b 100644
--- a/ui/views/widget/desktop_aura/desktop_root_window_host_win.cc
+++ b/ui/views/widget/desktop_aura/desktop_root_window_host_win.cc
@@ -765,6 +765,10 @@ void DesktopWindowTreeHostWin::HandleCreate() {
 void DesktopWindowTreeHostWin::HandleDestroying() {
   drag_drop_client_->OnNativeWidgetDestroying(GetHWND());
   native_widget_delegate_->OnNativeWidgetDestroying();
+
+  // Destroy the compositor before destroying the HWND since shutdown
+  // may try to swap to the window.
+  DestroyCompositor();
 }
 
 void DesktopWindowTreeHostWin::HandleDestroyed() {