Drag and drop between app list and launcher - First patch

ash/shell.cc

Index: ash/shell.cc
diff --git a/ash/shell.cc b/ash/shell.cc
index 4be78a2374242be5f8b56f0054ad6679846ac7de..4f6e9366103ec951f94dd00bb5bc63a33acf7c16 100644
--- a/ash/shell.cc
+++ b/ash/shell.cc
@@ -650,6 +650,13 @@ void Shell::ToggleAppList(aura::Window* window) {
   app_list_controller_->SetVisible(!app_list_controller_->IsVisible(), window);
 }
 
+void Shell::SetDragAndDropHostOfCurrentAppList(
+    app_list::ApplicationDragAndDropHost* drag_and_drop_host) {
+  if (app_list_controller_.get())
+    app_list_controller_->SetDragAndDropHostOfCurrentAppList(
+        drag_and_drop_host);
+}
+
 bool Shell::GetAppListTargetVisibility() const {
   return app_list_controller_.get() &&
       app_list_controller_->GetTargetVisibility();