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 46f01770605c6fb4d276422309f4e7ff42fea1be..bde131786943a50c26647602e6b2bec8fbd98165 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
@@ -88,7 +88,6 @@ DesktopWindowTreeHostWin::DesktopWindowTreeHostWin(
 }
 
 DesktopWindowTreeHostWin::~DesktopWindowTreeHostWin() {
-  DestroyCompositor();
   // WARNING: |content_window_| has been destroyed by the time we get here.
   desktop_native_widget_aura_->OnDesktopWindowTreeHostDestroyed(
       root_window_);
@@ -765,6 +764,10 @@ 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() {