[ash-md] Corrects initial positioning of the overview headers

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 aa0431a9a2c38e9568a4240cab27b295cf4db26b..001a09f3173785f5d395084ec9f411e65a6fd54a 100644
--- a/ash/common/wm/overview/window_selector_item.cc
+++ b/ash/common/wm/overview/window_selector_item.cc
@@ -496,6 +496,8 @@ void WindowSelectorItem::ShowWindowOnExit() {
 
 void WindowSelectorItem::PrepareForOverview() {
   transform_window_.PrepareForOverview();
+  UpdateHeaderLayout(HeaderFadeInMode::ENTER,
+                     OverviewAnimationType::OVERVIEW_ANIMATION_NONE);
 }
 
 bool WindowSelectorItem::Contains(const WmWindow* target) const {
@@ -765,8 +767,6 @@ void WindowSelectorItem::CreateWindowLabel(const base::string16& title) {
       window_label_->GetLayer()->Add(shadow_->layer());
     }
     window_label_->GetLayer()->SetMasksToBounds(false);
-    UpdateHeaderLayout(HeaderFadeInMode::ENTER,
-                       OverviewAnimationType::OVERVIEW_ANIMATION_NONE);
   } else {
     // Indicate that the label will be drawn onto a transparent background
     // (disables subpixel antialiasing).