Makes Window::Init take a WindowLayerType instead of LayerType.

ash/shelf/shelf_layout_manager_unittest.cc

Index: ash/shelf/shelf_layout_manager_unittest.cc
diff --git a/ash/shelf/shelf_layout_manager_unittest.cc b/ash/shelf/shelf_layout_manager_unittest.cc
index 89ee4ce72f0c8f9de159bb7271a0fd66c88af369..5c6d36b3d935bce8df31a83f8b049d218a071d26 100644
--- a/ash/shelf/shelf_layout_manager_unittest.cc
+++ b/ash/shelf/shelf_layout_manager_unittest.cc
@@ -347,7 +347,7 @@ class ShelfLayoutManagerTest : public ash::test::AshTestBase {
     aura::Window* window = new aura::Window(NULL);
     window->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_NORMAL);
     window->SetType(ui::wm::WINDOW_TYPE_NORMAL);
-    window->Init(ui::LAYER_TEXTURED);
+    window->Init(aura::WINDOW_LAYER_TEXTURED);
     ParentWindowInPrimaryRootWindow(window);
     return window;
   }