chromeos: Converts WorkspaceLayoutManager to aura::LayoutManager

ash/shelf/shelf_layout_manager.cc

Index: ash/shelf/shelf_layout_manager.cc
diff --git a/ash/shelf/shelf_layout_manager.cc b/ash/shelf/shelf_layout_manager.cc
index f2148e07ca03fc9a4c2e845d2a224b36933e42ac..0d27fb1a19ac12b0fdfd1b49832ddbdc67acbe8e 100644
--- a/ash/shelf/shelf_layout_manager.cc
+++ b/ash/shelf/shelf_layout_manager.cc
@@ -1039,10 +1039,10 @@ float ShelfLayoutManager::ComputeTargetOpacity(const State& state) {
 }
 
 bool ShelfLayoutManager::IsShelfHiddenForFullscreen() const {
-  const WmWindow* fullscreen_window = wm::GetWindowForFullscreenMode(
-      WmWindow::Get(shelf_widget_->GetNativeWindow()));
+  const aura::Window* fullscreen_window =
+      wm::GetWindowForFullscreenMode(shelf_widget_->GetNativeWindow());
   return fullscreen_window &&
-         fullscreen_window->GetWindowState()->hide_shelf_when_fullscreen();
+         wm::GetWindowState(fullscreen_window)->hide_shelf_when_fullscreen();
 }
 
 bool ShelfLayoutManager::IsShelfAutoHideForFullscreenMaximized() const {