[ash-md] Adjusts animation of the selector after closing an overview item

ash/common/wm/overview/window_selector.cc

Index: ash/common/wm/overview/window_selector.cc
diff --git a/ash/common/wm/overview/window_selector.cc b/ash/common/wm/overview/window_selector.cc
index 02eaa3071347db626a20e7925db8606e6f7318da..7dea935316ecdb2ed438473f1de56d37c77eb2a1 100644
--- a/ash/common/wm/overview/window_selector.cc
+++ b/ash/common/wm/overview/window_selector.cc
@@ -476,6 +476,10 @@ void WindowSelector::SelectWindow(WmWindow* window) {
   window->GetWindowState()->Activate();
 }
 
+void WindowSelector::SetSelectorOpacity(float opacity) {
+  grid_list_[selected_grid_index_]->SetSelectorOpacity(opacity);
+}
+
 bool WindowSelector::HandleKeyEvent(views::Textfield* sender,
                                     const ui::KeyEvent& key_event) {
   if (key_event.type() != ui::ET_KEY_PRESSED)