It is time.

ui/base/models/dialog_model.h

-// Copyright (c) 2013 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_BASE_MODELS_DIALOG_MODEL_H_
-#define UI_BASE_MODELS_DIALOG_MODEL_H_
-
-#include "base/strings/string16.h"
-#include "ui/base/ui_base_export.h"
-#include "ui/base/ui_base_types.h"
-
-namespace ui {
-
-// A model representing a dialog window. The model provides the content to show
-// to the user (i.e. label, title), and the ways the user can interact with it
-// (i.e. the buttons).
-class UI_BASE_EXPORT DialogModel {
- public:
-  virtual ~DialogModel();
-
-  // Returns the text of show in the dialog.
-  virtual base::string16 GetDialogLabel() const = 0;
-
-  // Returns the title of the dialog.
-  virtual base::string16 GetDialogTitle() const = 0;
-
-  // Returns a mask specifying which of the available DialogButtons are visible
-  // for the dialog. Note: Dialogs with just an OK button are frowned upon.
-  virtual int GetDialogButtons() const = 0;
-
-  // Returns the default dialog button. This should not be a mask as only
-  // one button should ever be the default button.  Return
-  // ui::DIALOG_BUTTON_NONE if there is no default.  Default
-  // behavior is to return ui::DIALOG_BUTTON_OK or
-  // ui::DIALOG_BUTTON_CANCEL (in that order) if they are
-  // present, ui::DIALOG_BUTTON_NONE otherwise.
-  virtual int GetDefaultDialogButton() const = 0;
-
-  // Returns whether the default dialog button should be colored blue as a call
-  // to action.
-  virtual bool ShouldDefaultButtonBeBlue() const = 0;
-
-  // Returns the label of the specified dialog button.
-  virtual base::string16 GetDialogButtonLabel(DialogButton button) const = 0;
-
-  // Returns whether the specified dialog button is enabled.
-  virtual bool IsDialogButtonEnabled(DialogButton button) const = 0;
-};
-
-}  // namespace ui
-
-#endif  // UI_BASE_MODELS_DIALOG_MODEL_H_