Display an app's short name in the app launcher

ui/app_list/views/app_list_item_view.h

Index: ui/app_list/views/app_list_item_view.h
diff --git a/ui/app_list/views/app_list_item_view.h b/ui/app_list/views/app_list_item_view.h
index 0738d83c7e7241dc1dcfbf198debc268c4dea86c..c9ab1c9047c57db2800989e3e0ae30ff28f8cbe4 100644
--- a/ui/app_list/views/app_list_item_view.h
+++ b/ui/app_list/views/app_list_item_view.h
@@ -62,6 +62,9 @@ class APP_LIST_EXPORT AppListItemView : public views::CustomButton,
   // Get icon from model and schedule background processing.
   void UpdateIcon();
 
+  // Update the tooltip text from the model.
+  void UpdateTooltip();
+
   void SetUIState(UIState state);
 
   // Sets |touch_dragging_| flag and updates UI.
@@ -73,6 +76,7 @@ class APP_LIST_EXPORT AppListItemView : public views::CustomButton,
   // AppListItemModelObserver overrides:
   virtual void ItemIconChanged() OVERRIDE;
   virtual void ItemTitleChanged() OVERRIDE;
+  virtual void ItemFullNameChanged() OVERRIDE;
   virtual void ItemHighlightedChanged() OVERRIDE;
   virtual void ItemIsInstallingChanged() OVERRIDE;
   virtual void ItemPercentDownloadedChanged() OVERRIDE;