[Win] App launcher drag/drop.

ui/app_list/app_list_view_delegate.h

Index: ui/app_list/app_list_view_delegate.h
diff --git a/ui/app_list/app_list_view_delegate.h b/ui/app_list/app_list_view_delegate.h
index 1e1150bdf867c41ff36630032e028d2046b9da95..bd7e3d3837f75193f4d69cffe578b1c006a48ef5 100644
--- a/ui/app_list/app_list_view_delegate.h
+++ b/ui/app_list/app_list_view_delegate.h
@@ -5,9 +5,14 @@
 #ifndef UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_
 #define UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_
 
+#include "base/callback_forward.h"
 #include "base/strings/string16.h"
 #include "ui/app_list/app_list_export.h"
 
+namespace base {
+class FilePath;
+}
+
 namespace gfx {
 class ImageSkia;
 }
@@ -31,6 +36,12 @@ class APP_LIST_EXPORT AppListViewDelegate {
   // Gets the SigninDelegate for the app list. Owned by the AppListViewDelegate.
   virtual SigninDelegate* GetSigninDelegate() = 0;
 
+  // Gets a path to a shortcut for the given app. Returns asynchronously as the
+  // shortcut may not exist yet.
+  virtual void GetShortcutPathForApp(
+      const std::string& app_id,
+      const base::Callback<void(const base::FilePath&)>& callback) = 0;
+
   // Invoked when an AppListeItemModelView is activated by click or enter key.
   virtual void ActivateAppListItem(AppListItemModel* item,
                                    int event_flags) = 0;