Make the minimized home card not overlap activities on Athena

athena/main/athena_launcher.cc

Index: athena/main/athena_launcher.cc
diff --git a/athena/main/athena_launcher.cc b/athena/main/athena_launcher.cc
index 04b55a77f2981ad82955f8b15ebdfe329f1622e3..1542a227f79add00d931a71a32fa6bea2bb46ca5 100644
--- a/athena/main/athena_launcher.cc
+++ b/athena/main/athena_launcher.cc
@@ -54,6 +54,7 @@ class AthenaViewsDelegate : public views::ViewsDelegate {
 };
 
 void StartAthena(aura::Window* root_window,
+                 athena::ScreenManagerDelegate* delegate,
                  athena::ActivityFactory* activity_factory,
                  athena::AppModelBuilder* app_model_builder) {
 #if defined(USE_X11)
@@ -71,7 +72,7 @@ void StartAthena(aura::Window* root_window,
 
   athena::SystemUI::Create();
   athena::InputManager::Create()->OnRootWindowCreated(root_window);
-  athena::ScreenManager::Create(root_window);
+  athena::ScreenManager::Create(delegate, root_window);
   athena::WindowManager::Create();
   athena::HomeCard::Create(app_model_builder);
   athena::ActivityManager::Create();