It is time.

ui/aura/client/capture_client.cc

-// 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/aura/client/capture_client.h"
-
-#include "ui/aura/window_event_dispatcher.h"
-#include "ui/aura/window_property.h"
-
-DECLARE_WINDOW_PROPERTY_TYPE(aura::client::CaptureClient*)
-
-namespace aura {
-namespace client {
-
-DEFINE_WINDOW_PROPERTY_KEY(
-    CaptureClient*, kRootWindowCaptureClientKey, NULL);
-
-void SetCaptureClient(Window* root_window, CaptureClient* client) {
-  root_window->SetProperty(kRootWindowCaptureClientKey, client);
-}
-
-CaptureClient* GetCaptureClient(Window* root_window) {
-  return root_window ?
-      root_window->GetProperty(kRootWindowCaptureClientKey) : NULL;
-}
-
-Window* GetCaptureWindow(Window* window) {
-  Window* root_window = window->GetRootWindow();
-  if (!root_window)
-    return NULL;
-  CaptureClient* capture_client = GetCaptureClient(root_window);
-  return capture_client ? capture_client->GetCaptureWindow() : NULL;
-}
-
-}  // namespace client
-}  // namespace aura