It is time.

ui/aura/client/capture_client.h

-// 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.
-
-#ifndef UI_AURA_CLIENT_CAPTURE_CLIENT_H_
-#define UI_AURA_CLIENT_CAPTURE_CLIENT_H_
-
-#include "ui/aura/aura_export.h"
-
-namespace aura {
-class Window;
-
-namespace client {
-
-// An interface implemented by an object that manages input capture.
-class AURA_EXPORT CaptureClient {
- public:
-  // Does a capture on the |window|.
-  virtual void SetCapture(Window* window) = 0;
-
-  // Releases a capture from the |window|.
-  virtual void ReleaseCapture(Window* window) = 0;
-
-  // Returns the current capture window. This may only return a Window if the
-  // Window that has capture is a child of the Window the CaptureClient is
-  // installed on. GetGlobalCaptureWindow() can be used to locate the Window
-  // that has capture regardless of the Window the CaptureClient is installed
-  // on.
-  virtual Window* GetCaptureWindow() = 0;
-
-  // See description of GetCaptureWindow() for details.
-  virtual Window* GetGlobalCaptureWindow() = 0;
-
- protected:
-  virtual ~CaptureClient() {}
-};
-
-// Sets/Gets the capture client on the root Window.
-AURA_EXPORT void SetCaptureClient(Window* root_window,
-                                  CaptureClient* client);
-AURA_EXPORT CaptureClient* GetCaptureClient(Window* root_window);
-
-// A utility function to get the current capture window. Returns NULL
-// if the window doesn't have a root window, or there is no capture window.
-AURA_EXPORT Window* GetCaptureWindow(Window* window);
-
-}  // namespace clients
-}  // namespace aura
-
-#endif  // UI_AURA_CLIENT_CAPTURE_CLIENT_H_