Update SetPaintToLayer to accept LayerType

ash/common/wm/overview/window_selector_item.cc

Index: ash/common/wm/overview/window_selector_item.cc
diff --git a/ash/common/wm/overview/window_selector_item.cc b/ash/common/wm/overview/window_selector_item.cc
index 76c8218876e0b2064401bc455c78d000c102fe33..a48002b94ad28b557fefb82515923394b8bbe60b 100644
--- a/ash/common/wm/overview/window_selector_item.cc
+++ b/ash/common/wm/overview/window_selector_item.cc
@@ -31,6 +31,7 @@
 #include "grit/ash_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/compositor/layer_animation_sequence.h"
+#include "ui/compositor/layer_type.h"
 #include "ui/compositor/scoped_animation_duration_scale_mode.h"
 #include "ui/gfx/animation/slide_animation.h"
 #include "ui/gfx/canvas.h"
@@ -192,7 +193,7 @@ class WindowSelectorItem::RoundedContainerView
         current_value_(0),
         layer_(nullptr),
         animation_(new gfx::SlideAnimation(this)) {
-    SetPaintToLayer(true);
+    SetPaintToLayer(ui::LAYER_TEXTURED);
     layer()->SetFillsBoundsOpaquely(false);
   }