MacViews: Fix WidgetTest.DesktopNativeWidgetNoPaintAfterCloseTest

ui/views/cocoa/views_nswindow_delegate.mm

Index: ui/views/cocoa/views_nswindow_delegate.mm
diff --git a/ui/views/cocoa/views_nswindow_delegate.mm b/ui/views/cocoa/views_nswindow_delegate.mm
index 50f00211305d4afbf3772048c95756b1b4e18c6b..038a844a2713d280b5673eb20d5e610a6c211d81 100644
--- a/ui/views/cocoa/views_nswindow_delegate.mm
+++ b/ui/views/cocoa/views_nswindow_delegate.mm
@@ -5,6 +5,7 @@
 #import "ui/views/cocoa/views_nswindow_delegate.h"
 
 #include "base/logging.h"
+#import "ui/views/cocoa/bridged_content_view.h"
 #import "ui/views/cocoa/bridged_native_widget.h"
 #include "ui/views/widget/native_widget_mac.h"
 
@@ -22,6 +23,15 @@
   return parent_->native_widget_mac();
 }
 
+- (void)onWindowOrderWillChange:(NSWindowOrderingMode)orderingMode {
+  if (orderingMode != NSWindowOut)
+    [parent_->ns_view() setWillShow:YES];
+}
+
+- (void)onWindowOrderChanged {
+  [parent_->ns_view() setWillShow:NO];
+}
+
 // NSWindowDelegate implementation.
 
 - (void)windowDidFailToEnterFullScreen:(NSWindow*)window {