ash: Fix blank window when maximizing an app

ui/views/window/non_client_view.cc

Index: ui/views/window/non_client_view.cc
diff --git a/ui/views/window/non_client_view.cc b/ui/views/window/non_client_view.cc
index c1fa238c8ab35b1ea40d2688f865924f92299fb8..357c1dbab118e11cf5d03ac533b8a7bd52f74da0 100644
--- a/ui/views/window/non_client_view.cc
+++ b/ui/views/window/non_client_view.cc
@@ -59,12 +59,14 @@ void NonClientView::WindowClosing() {
   client_view_->WidgetClosing();
 }
 
-void NonClientView::UpdateFrame() {
+void NonClientView::UpdateFrame(bool layout) {
   Widget* widget = GetWidget();
   SetFrameView(widget->CreateNonClientFrameView());
   widget->ThemeChanged();
-  Layout();
-  SchedulePaint();
+  if (layout) {
+    Layout();
+    SchedulePaint();
+  }
 }
 
 void NonClientView::SetInactiveRenderingDisabled(bool disable) {