[Refactor] Replace kFullscreenUsesMinimalChromeKey with WindowState::hide_shelf_when_fullscreen()

ash/wm/gestures/shelf_gesture_handler.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 "ash/wm/gestures/shelf_gesture_handler.h"
 
 #include "ash/root_window_controller.h"
 #include "ash/session_state_delegate.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shelf/shelf_types.h"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
 #include "ash/system/status_area_widget.h"
 #include "ash/wm/gestures/tray_gesture_handler.h"
-#include "ash/wm/window_properties.h"
+#include "ash/wm/window_state.h"
 #include "ash/wm/window_util.h"
 #include "ui/aura/window.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/scoped_layer_animation_settings.h"
 #include "ui/gfx/transform.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
 namespace internal {
 
@@ skipping 10 matching lines @@
       shell->session_state_delegate()->IsScreenLocked()) {
     // The gestures are disabled in the lock/login screen.
     return false;
   }
 
   // TODO(oshima): Find the root window controller from event's location.
   RootWindowController* controller = Shell::GetPrimaryRootWindowController();
 
   ShelfLayoutManager* shelf = controller->GetShelfLayoutManager();
 
-  // The gesture are disabled for fullscreen windows that are not in immersive
-  // mode.
   const aura::Window* fullscreen = controller->GetTopmostFullscreenWindow();
-  if (fullscreen && !shelf->FullscreenWithMinimalChrome())
+  if (fullscreen &&
+      ash::wm::GetWindowState(fullscreen)->hide_shelf_when_fullscreen()) {
     return false;
+  }
 
   if (event.type() == ui::ET_GESTURE_SCROLL_BEGIN) {
     drag_in_progress_ = true;
     shelf->StartGestureDrag(event);
     return true;
   }
 
   if (!drag_in_progress_)
     return false;
 
@@ skipping 22 matching lines @@
     return true;
   }
 
   // Unexpected event. Reset the state and let the event fall through.
   shelf->CancelGestureDrag();
   return false;
 }
 
 }  // namespace internal
 }  // namespace ash