Make packaged apps use AppNonClientFrameViewAsh when maximized

chrome/browser/ui/views/frame/non_client_frame_view_switcher_ash.h

+// Copyright 2013 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 CHROME_BROWSER_UI_VIEWS_FRAME_NON_CLIENT_FRAME_VIEW_SWITCHER_ASH_H_
+#define CHROME_BROWSER_UI_VIEWS_FRAME_NON_CLIENT_FRAME_VIEW_SWITCHER_ASH_H_
+
+#include "ash/wm/window_state_observer.h"
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "ui/aura/window_observer.h"
+
+namespace aura {
+class Window;
+}
+
+namespace views {
+class Widget;
+}
+
+// Class which switches a widget's non client view when the widget's maximized
+// state changes.
+class NonClientFrameViewSwitcherAsh : public aura::WindowObserver,
+                                      public ash::wm::WindowStateObserver {
+ public:
+  NonClientFrameViewSwitcherAsh(views::Widget* frame_widget,
+                                aura::Window* frame_window);
+  virtual ~NonClientFrameViewSwitcherAsh();
+
+ private:
+  // aura::WindowObserver override:
+  virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
+
+  // ash::wm::WindowStateObserver override:
+  virtual void OnWindowShowTypeChanged(ash::wm::WindowState* window_state,
+                                       ash::wm::WindowShowType type) OVERRIDE;
+
+  // The widget whose non client view is to be switched when its maximized state
+  // changes.
+  views::Widget* frame_widget_;
+
+  // |frame_widget_|'s aura::Window.
+  aura::Window* frame_window_;
+
+  DISALLOW_COPY_AND_ASSIGN(NonClientFrameViewSwitcherAsh);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_FRAME_NON_CLIENT_FRAME_VIEW_SWITCHER_ASH_H_