Align panel icons on the right / end.

ash/shell/window_watcher.cc

Index: ash/shell/window_watcher.cc
diff --git a/ash/shell/window_watcher.cc b/ash/shell/window_watcher.cc
index 157a5980ad1575b4b16ca5c695e3c713afd8865e..60324fb921731b3bb312a7bbe676c2eb0aedba79 100644
--- a/ash/shell/window_watcher.cc
+++ b/ash/shell/window_watcher.cc
@@ -79,7 +79,8 @@ void WindowWatcher::OnWindowAdded(aura::Window* new_window) {
   static int image_count = 0;
   ash::LauncherModel* model = Launcher::ForPrimaryDisplay()->model();
   ash::LauncherItem item;
-  item.type = ash::TYPE_TABBED;
+  item.type = new_window->type() == aura::client::WINDOW_TYPE_PANEL ?
+                                    ash::TYPE_APP_PANEL : ash::TYPE_TABBED;
   id_to_window_[model->next_id()] = new_window;
 
   SkBitmap icon_bitmap;