arc: Support window recreation.

chrome/browser/ui/ash/launcher/arc_app_window_launcher_item_controller.cc

Index: chrome/browser/ui/ash/launcher/arc_app_window_launcher_item_controller.cc
diff --git a/chrome/browser/ui/ash/launcher/arc_app_window_launcher_item_controller.cc b/chrome/browser/ui/ash/launcher/arc_app_window_launcher_item_controller.cc
index 7524f30c2d34bf140b4ea7a8c5599d8338cf2e98..8396f824efae272bc9ce648068547bc82e67a29c 100644
--- a/chrome/browser/ui/ash/launcher/arc_app_window_launcher_item_controller.cc
+++ b/chrome/browser/ui/ash/launcher/arc_app_window_launcher_item_controller.cc
@@ -24,6 +24,16 @@ ArcAppWindowLauncherItemController::ArcAppWindowLauncherItemController(
 
 ArcAppWindowLauncherItemController::~ArcAppWindowLauncherItemController() {}
 
+ash::ShelfItemDelegate::PerformedAction
+ArcAppWindowLauncherItemController::ItemSelected(const ui::Event& eent) {

[Mr4D (OOO till 08-26), 2016/08/26 22:54:43]

eent -> event?

[khmel, 2016/08/29 16:41:04]

Done.

+  if (window_count()) {
+    return AppWindowLauncherItemController::ItemSelected(eent);
+  } else {
+    Launch(ash::LAUNCH_FROM_UNKNOWN, 0);
+    return kNewWindowCreated;
+  }
+}
+
 base::string16 ArcAppWindowLauncherItemController::GetTitle() {
   ArcAppListPrefs* arc_prefs =
       ArcAppListPrefs::Get(launcher_controller()->GetProfile());