mash: Remove V1 app shelf item locking; monitor running status instead.

chrome/browser/ui/ash/launcher/launcher_item_controller.h

Index: chrome/browser/ui/ash/launcher/launcher_item_controller.h
diff --git a/chrome/browser/ui/ash/launcher/launcher_item_controller.h b/chrome/browser/ui/ash/launcher/launcher_item_controller.h
index 5e163771c4d76cd6da665d514fcdbaf66850482d..7b7e3dd65aaeef4dd623e3644f287ccc9b491162 100644
--- a/chrome/browser/ui/ash/launcher/launcher_item_controller.h
+++ b/chrome/browser/ui/ash/launcher/launcher_item_controller.h
@@ -36,14 +36,6 @@ class LauncherItemController : public ash::mojom::ShelfItemDelegate {
     return launcher_controller_;
   }
 
-  // Lock this item to the launcher without being pinned (windowed v1 apps).
-  void lock() { locked_++; }
-  void unlock() {
-    DCHECK(locked_);
-    locked_--;
-  }
-  bool locked() const { return locked_ > 0; }
-
   bool image_set_by_controller() const { return image_set_by_controller_; }
   void set_image_set_by_controller(bool image_set_by_controller) {
     image_set_by_controller_ = image_set_by_controller;
@@ -68,11 +60,6 @@ class LauncherItemController : public ash::mojom::ShelfItemDelegate {
 
   ChromeLauncherController* launcher_controller_;
 
-  // The lock counter which tells the launcher if the item can be removed from
-  // the launcher (0) or not (>0). It is being used for windowed V1
-  // applications.
-  int locked_;
-
   // Set to true if the launcher item image has been set by the controller.
   bool image_set_by_controller_;