Couple of changes for client area

ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc

Index: ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc
diff --git a/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc b/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc
index 15ebd9ce54c39224ac81ab5222107063504789d1..d4a53872ca8d0ada1d76954162ebf1e11abda005 100644
--- a/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc
+++ b/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc
@@ -1167,6 +1167,10 @@ void DesktopWindowTreeHostX11::SizeConstraintsChanged() {
   UpdateMinAndMaxSize();
 }
 
+bool DesktopWindowTreeHostX11::ShouldUpdateWindowTransparency() const {
+  return true;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // DesktopWindowTreeHostX11, aura::WindowTreeHost implementation: