Moves management of transients out of Window

ash/wm/workspace/workspace_layout_manager_unittest.cc

Index: ash/wm/workspace/workspace_layout_manager_unittest.cc
diff --git a/ash/wm/workspace/workspace_layout_manager_unittest.cc b/ash/wm/workspace/workspace_layout_manager_unittest.cc
index 0040a6c2528f4b5f2965646c3d87b2d6cdfe678e..49aaaa704e5429de593d1e3f9c8c6c6e7e843457 100644
--- a/ash/wm/workspace/workspace_layout_manager_unittest.cc
+++ b/ash/wm/workspace/workspace_layout_manager_unittest.cc
@@ -20,6 +20,7 @@
 #include "ui/aura/test/test_windows.h"
 #include "ui/aura/window.h"
 #include "ui/gfx/insets.h"
+#include "ui/views/corewm/window_util.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_delegate.h"
 
@@ -329,7 +330,7 @@ TEST_F(WorkspaceLayoutManagerTest, DontClobberRestoreBounds) {
 
   scoped_ptr<aura::Window> window2(
       CreateTestWindowInShellWithBounds(gfx::Rect(12, 20, 30, 40)));
-  window->AddTransientChild(window2.get());
+  views::corewm::AddTransientChild(window.get(), window2.get());
   window2->Show();
 
   window_observer.set_window(window2.get());