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 7b809cb0f826ca6e76cfd9f135549ea51f5c7986..95457e9e8a8031d9d05d036b6be413ff7893d6db 100644
--- a/ash/shell.cc
+++ b/ash/shell.cc
@@ -631,6 +631,11 @@ void Shell::ToggleAppList(aura::Window* window) {
   app_list_controller_->SetVisible(!app_list_controller_->IsVisible(), window);
 }
 
+void Shell::SetAppListDnDHost(app_list::ApplicationDnDHost* dnd_host) {
+  if (app_list_controller_.get())
+    app_list_controller_->SetAppListDnDHost(dnd_host);
+}
+
 bool Shell::GetAppListTargetVisibility() const {
   return app_list_controller_.get() &&
       app_list_controller_->GetTargetVisibility();