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..5a5da0eac30f03d392df88e3cc58a23230cde6cc 100644
--- a/ash/wm/app_list_controller.cc
+++ b/ash/wm/app_list_controller.cc
@@ -100,7 +100,8 @@ AppListController::~AppListController() {
   pagination_model_->RemoveObserver(this);
 }
 
-void AppListController::SetVisible(bool visible, aura::Window* window) {
+void AppListController::SetVisible(bool visible,
+                                   aura::Window* window) {
   if (visible == is_visible_)
     return;
 
@@ -139,6 +140,12 @@ aura::Window* AppListController::GetWindow() {
   return is_visible_ && view_ ? view_->GetWidget()->GetNativeWindow() : NULL;
 }
 
+void AppListController::SetAppListDnDHost(
+    app_list::ApplicationDnDHost* dnd_host) {
+  if (view_ && is_visible_)
+    view_->SetAppListDnDHost(dnd_host);
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // AppListController, private: