It is time.

ui/wm/public/window_move_client.cc

Index: ui/wm/public/window_move_client.cc
diff --git a/ui/wm/public/window_move_client.cc b/ui/wm/public/window_move_client.cc
deleted file mode 100644
index 44ccca965c64facbbd4328e88a2727148d8ec104..0000000000000000000000000000000000000000
--- a/ui/wm/public/window_move_client.cc
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "ui/wm/public/window_move_client.h"
-
-#include "ui/aura/window.h"
-#include "ui/aura/window_property.h"
-
-DECLARE_WINDOW_PROPERTY_TYPE(aura::client::WindowMoveClient*)
-
-namespace aura {
-namespace client {
-
-// A property key to store a client that handles window moves.
-DEFINE_LOCAL_WINDOW_PROPERTY_KEY(
-    WindowMoveClient*, kWindowMoveClientKey, NULL);
-
-void SetWindowMoveClient(Window* window, WindowMoveClient* client) {
-  window->SetProperty(kWindowMoveClientKey, client);
-}
-
-WindowMoveClient* GetWindowMoveClient(Window* window) {
-  return window->GetProperty(kWindowMoveClientKey);
-}
-
-}  // namespace client
-}  // namespace aura