Make packaged apps use AppNonClientFrameViewAsh when maximized

chrome/browser/ui/views/apps/native_app_window_views.h

Index: chrome/browser/ui/views/apps/native_app_window_views.h
diff --git a/chrome/browser/ui/views/apps/native_app_window_views.h b/chrome/browser/ui/views/apps/native_app_window_views.h
index 9f4d9691e38cf0286bed9b08f12a895b8567ca61..ce11a71e787991d101abd226101118a96d96ce21 100644
--- a/chrome/browser/ui/views/apps/native_app_window_views.h
+++ b/chrome/browser/ui/views/apps/native_app_window_views.h
@@ -36,6 +36,10 @@ namespace views {
 class WebView;
 }
 
+#if defined(USE_ASH)
+class NonClientFrameViewSwitcherAsh;
+#endif
+
 class NativeAppWindowViews : public apps::NativeAppWindow,
                              public views::WidgetDelegateView,
                              public views::WidgetObserver,
@@ -185,6 +189,12 @@ class NativeAppWindowViews : public apps::NativeAppWindow,
 
   views::UnhandledKeyboardEventHandler unhandled_keyboard_event_handler_;
 
+#if defined(USE_ASH)
+  // Used to switch the non client frame view when an app's maximized state is
+  // changed.
+  scoped_ptr<NonClientFrameViewSwitcherAsh> frame_switcher_;
+#endif
+
   base::WeakPtrFactory<NativeAppWindowViews> weak_ptr_factory_;
 
   ObserverList<web_modal::WebContentsModalDialogHostObserver> observer_list_;