In Windows desktop Chrome AURA the HandleVisibilityChanged function on the HWNDMessageHandlerDelega…

ui/views/widget/desktop_aura/desktop_root_window_host_x11.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/widget/desktop_aura/desktop_root_window_host_x11.h"
 
 #include <X11/extensions/XInput2.h>
 #include <X11/Xatom.h>
 #include <X11/Xutil.h>
 
@@ skipping 624 matching lines @@
 
 void DesktopRootWindowHostX11::OnNativeWidgetFocus() {
   native_widget_delegate_->AsWidget()->GetInputMethod()->OnFocus();
 }
 
 void DesktopRootWindowHostX11::OnNativeWidgetBlur() {
   if (xwindow_)
     native_widget_delegate_->AsWidget()->GetInputMethod()->OnBlur();
 }
 
+void DesktopRootWindowHostX11::AlwaysPaintActivated(bool value) {
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // DesktopRootWindowHostX11, aura::RootWindowHost implementation:
 
 void DesktopRootWindowHostX11::SetDelegate(
     aura::RootWindowHostDelegate* delegate) {
   root_window_host_delegate_ = delegate;
 }
 
 aura::RootWindow* DesktopRootWindowHostX11::GetRootWindow() {
   return root_window_;
@@ skipping 486 matching lines @@
 DesktopRootWindowHost* DesktopRootWindowHost::Create(
     internal::NativeWidgetDelegate* native_widget_delegate,
     DesktopNativeWidgetAura* desktop_native_widget_aura,
     const gfx::Rect& initial_bounds) {
   return new DesktopRootWindowHostX11(native_widget_delegate,
                                         desktop_native_widget_aura,
                                         initial_bounds);
 }
 
 }  // namespace views