Drag and drop between app list and launcher - First patch

ash/wm/app_list_controller.cc

Index: ash/wm/app_list_controller.cc
diff --git a/ash/wm/app_list_controller.cc b/ash/wm/app_list_controller.cc
index 7fcf76c9f1d7e8939a30d2bcf2b7f89567d2b1f4..02afc69c7bb15902b40b4863a3b85d1cd79cfb96 100644
--- a/ash/wm/app_list_controller.cc
+++ b/ash/wm/app_list_controller.cc
@@ -139,6 +139,12 @@ aura::Window* AppListController::GetWindow() {
   return is_visible_ && view_ ? view_->GetWidget()->GetNativeWindow() : NULL;
 }
 
+void AppListController::SetDragAndDropHostOfCurrentAppList(
+    app_list::ApplicationDragAndDropHost* drag_and_drop_host) {
+  if (view_ && is_visible_)
+    view_->SetDragAndDropHostOfCurrentAppList(drag_and_drop_host);
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // AppListController, private: