Separates out accelerators using non-common types

ash/wm/window_util.cc

Index: ash/wm/window_util.cc
diff --git a/ash/wm/window_util.cc b/ash/wm/window_util.cc
index 32e0b1e8c768a7adb8eeba3b0f1655c0a0e136a9..9cf50d32120034195e23230d032b26d5a36a0c0d 100644
--- a/ash/wm/window_util.cc
+++ b/ash/wm/window_util.cc
@@ -62,11 +62,6 @@ bool IsWindowUserPositionable(aura::Window* window) {
   return GetWindowState(window)->IsUserPositionable();
 }
 
-void CenterWindow(aura::Window* window) {
-  wm::WMEvent event(wm::WM_EVENT_CENTER);
-  wm::GetWindowState(window)->OnWMEvent(&event);
-}
-
 void PinWindow(aura::Window* window) {
   wm::WMEvent event(wm::WM_EVENT_PIN);
   wm::GetWindowState(window)->OnWMEvent(&event);