[cleanup] Remove LauncherItemChanged() from LauncherItemController

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 c374b1fdfcfcb51fa0431b59ba51d9faa0367fa8..1ab1f6621b428b409b2e9d84e949520b561c7ed2 100644
--- a/chrome/browser/ui/ash/launcher/launcher_item_controller.h
+++ b/chrome/browser/ui/ash/launcher/launcher_item_controller.h
@@ -85,10 +85,6 @@ class LauncherItemController {
   // Closes all windows associated with this item.
   virtual void Close() = 0;
 
-  // Indicates that the item at |index| has changed from its previous value.
-  virtual void LauncherItemChanged(int model_index,
-                                   const ash::LauncherItem& old_item) = 0;
-
   // Called when the item is clicked. The behavior varies by the number of
   // windows associated with the item:
   // * One window: toggles the minimize state.