Unify window fullscreen and minimizing implementation

chrome/browser/ui/views/apps/chrome_native_app_window_views_aura.cc

 // Copyright 2015 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 "chrome/browser/ui/views/apps/chrome_native_app_window_views_aura.h"
 
 #include <utility>
 
 #include "apps/ui/views/app_window_frame_view.h"
 #include "base/macros.h"
@@ skipping 28 matching lines @@
   switch (restore_state) {
     case ui::SHOW_STATE_NORMAL:
     case ui::SHOW_STATE_MAXIMIZED:
     case ui::SHOW_STATE_FULLSCREEN:
       return restore_state;
 
     case ui::SHOW_STATE_DEFAULT:
     case ui::SHOW_STATE_MINIMIZED:
     case ui::SHOW_STATE_INACTIVE:
     case ui::SHOW_STATE_DOCKED:
+    case ui::SHOW_STATE_PREVIOUS:
     case ui::SHOW_STATE_END:
       return ui::SHOW_STATE_NORMAL;
   }
 
   return ui::SHOW_STATE_NORMAL;
 }
 
 void ChromeNativeAppWindowViewsAura::OnBeforeWidgetInit(
     const AppWindow::CreateParams& create_params,
     views::Widget::InitParams* init_params,
@@ skipping 66 matching lines @@
   ChromeNativeAppWindowViews::UpdateShape(std::move(region));
 
   aura::Window* native_window = widget()->GetNativeWindow();
   if (shape() && !had_shape) {
     native_window->SetEventTargeter(std::unique_ptr<ui::EventTargeter>(
         new ShapedAppWindowTargeter(native_window, this)));
   } else if (!shape() && had_shape) {
     native_window->SetEventTargeter(std::unique_ptr<ui::EventTargeter>());
   }
 }