Fixes crash in SaveWindowPlacement. It's possible to get a WM_CLOSE

views/widget/native_widget_win.cc

Index: views/widget/native_widget_win.cc
diff --git a/views/widget/native_widget_win.cc b/views/widget/native_widget_win.cc
index 8c20b03447cc2f7ba6c215f3332846583e3806ec..e6f0896421230fe933b51b556b9d99b14d79fdcd 100644
--- a/views/widget/native_widget_win.cc
+++ b/views/widget/native_widget_win.cc
@@ -1270,8 +1270,6 @@ void NativeWidgetWin::OnDestroy() {
     RevokeDragDrop(hwnd());
     drop_target_ = NULL;
   }
-
-  props_.reset();
 }
 
 void NativeWidgetWin::OnDisplayChange(UINT bits_per_pixel, CSize screen_size) {
@@ -2050,6 +2048,9 @@ void NativeWidgetWin::OnWindowPosChanged(WINDOWPOS* window_pos) {
 }
 
 void NativeWidgetWin::OnFinalMessage(HWND window) {
+  // We don't destroy props in WM_DESTROY as we may still get messages after
+  // WM_DESTROY that assume the properties are still valid (such as WM_CLOSE).
+  props_.reset();
   delegate_->OnNativeWidgetDestroyed();
   if (ownership_ == Widget::InitParams::NATIVE_WIDGET_OWNS_WIDGET)
     delete this;