Open app with Alt+number even when it is not running.

ash/accelerators/accelerator_controller.cc

Index: ash/accelerators/accelerator_controller.cc
diff --git a/ash/accelerators/accelerator_controller.cc b/ash/accelerators/accelerator_controller.cc
index 7557bd850d4bc9b3d306a90477e1184f7b9ef582..0d190febf5d53e177bfcaa61e0996ca89d884978 100644
--- a/ash/accelerators/accelerator_controller.cc
+++ b/ash/accelerators/accelerator_controller.cc
@@ -715,7 +715,8 @@ void AcceleratorController::SwitchToWindow(int window) {
   // found (which is true when indexes_left is -1) or b.) the last item was
   // requested (which is true when index was passed in as a negative number).
   if (found_index >= 0 && (indexes_left == -1 || window < 0) &&
-      items[found_index].status == ash::STATUS_RUNNING) {
+      (items[found_index].status == ash::STATUS_RUNNING ||
+       items[found_index].status == ash::STATUS_CLOSED)) {
     // Then set this one as active.
     Shell::GetInstance()->launcher()->ActivateLauncherItem(found_index);
   }