Change Widget::GetAllOwnedWidgets to return child widgets as well

ui/views/widget/native_widget_mac.mm

Index: ui/views/widget/native_widget_mac.mm
diff --git a/ui/views/widget/native_widget_mac.mm b/ui/views/widget/native_widget_mac.mm
index b6aa7176a1163772804329ac8577fa0cf8146f31..7e8b17b4e086a4e4c47686f5f04c8c3fc0565230 100644
--- a/ui/views/widget/native_widget_mac.mm
+++ b/ui/views/widget/native_widget_mac.mm
@@ -592,25 +592,20 @@ NativeWidgetPrivate* NativeWidgetPrivate::GetTopLevelNativeWidget(
 }
 
 // static
-void NativeWidgetPrivate::GetAllChildWidgets(gfx::NativeView native_view,
-                                             Widget::Widgets* children) {
+void NativeWidgetPrivate::GetAllChildAndOwnedWidgets(
+    gfx::NativeView native_view,
+    Widget::Widgets* widgets) {
   NativeWidgetPrivate* native_widget =
       GetNativeWidgetForNativeView(native_view);
   if (!native_widget)
     return;
 
-  // Code expects widget for |native_view| to be added to |children|.
+  // Code expects widget for |native_view| to be added to |widgets|.
   if (native_widget->GetWidget())
-    children->insert(native_widget->GetWidget());
+    widgets->insert(native_widget->GetWidget());
 
   for (NSWindow* child_window : [native_widget->GetNativeWindow() childWindows])
-    GetAllChildWidgets([child_window contentView], children);
-}
-
-// static
-void NativeWidgetPrivate::GetAllOwnedWidgets(gfx::NativeView native_view,
-                                             Widget::Widgets* owned) {
-  NOTIMPLEMENTED();
+    GetAllChildAndOwnedWidgets([child_window contentView], widgets);
 }
 
 // static