Show overview mode button in TouchView with open modal window

ash/wm/dock/docked_window_resizer_unittest.cc

Index: ash/wm/dock/docked_window_resizer_unittest.cc
diff --git a/ash/wm/dock/docked_window_resizer_unittest.cc b/ash/wm/dock/docked_window_resizer_unittest.cc
index 63161766b6021af1db9fffd893778cc35404e1d9..17a692d83b79013b8e098c901d6dddc23da9b0c7 100644
--- a/ash/wm/dock/docked_window_resizer_unittest.cc
+++ b/ash/wm/dock/docked_window_resizer_unittest.cc
@@ -87,27 +87,9 @@ class DockedWindowResizerTest
     }
     return window;
   }
-
   aura::Window* CreateModalWindow(const gfx::Rect& bounds) {
-    aura::Window* window = new aura::Window(&delegate_);
-    window->SetProperty(aura::client::kModalKey, ui::MODAL_TYPE_SYSTEM);
-    window->SetType(ui::wm::WINDOW_TYPE_NORMAL);
-    window->Init(ui::LAYER_TEXTURED);
-    window->Show();
-
-    if (bounds.IsEmpty()) {
-      ParentWindowInPrimaryRootWindow(window);
-    } else {
-      gfx::Display display =
-          Shell::GetScreen()->GetDisplayMatching(bounds);
-      aura::Window* root = ash::Shell::GetInstance()->display_controller()->
-          GetRootWindowForDisplayId(display.id());
-      gfx::Point origin = bounds.origin();
-      ::wm::ConvertPointFromScreen(root, &origin);
-      window->SetBounds(gfx::Rect(origin, bounds.size()));
-      aura::client::ParentWindowWithContext(window, root, bounds);
-    }
-    return window;
+    return CreateTestModalWindowInShellWithDelegateAndType(
+        &delegate_, ui::wm::WINDOW_TYPE_NORMAL, 0, bounds);
   }
 
   static WindowResizer* CreateSomeWindowResizer(