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

ui/views/widget/desktop_aura/desktop_root_window_host.h

 // 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.
 
 #ifndef UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_ROOT_WINDOW_HOST_H_
 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_ROOT_WINDOW_HOST_H_
 
 #include "ui/base/ui_base_types.h"
 #include "ui/views/views_export.h"
 #include "ui/views/widget/widget.h"
@@ skipping 95 matching lines @@
                               const gfx::ImageSkia& app_icon) = 0;
 
   virtual void InitModalType(ui::ModalType modal_type) = 0;
 
   virtual void FlashFrame(bool flash_frame) = 0;
 
   // Called when the DesktopNativeWidgetAura's aura::Window is focused and
   // blurred.
   virtual void OnNativeWidgetFocus() = 0;
   virtual void OnNativeWidgetBlur() = 0;
+
+  // Paints the host window as activated depending on the bool passed in.
+  virtual void SetInactiveRenderingDisabled(bool disable_inactive) = 0;
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_ROOT_WINDOW_HOST_H_