[Sync] [GTK] Add GTK version of the one-click signin dialog

chrome/browser/ui/gtk/one_click_signin_dialog_gtk.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 CHROME_BROWSER_UI_GTK_ONE_CLICK_SIGNIN_DIALOG_GTK_H_
+#define CHROME_BROWSER_UI_GTK_ONE_CLICK_SIGNIN_DIALOG_GTK_H_
+#pragma once
+
+#include "chrome/browser/ui/sync/one_click_signin_dialog.h"
+
+#include "base/basictypes.h"
+#include "base/callback.h"
+#include "ui/base/gtk/gtk_signal.h"
+
+typedef struct _GtkWidget GtkWidget;
+typedef struct _GtkWindow GtkWindow;
+
+// Displays the one-click signin confirmation dialog (as a
+// window-modal dialog) and starts one-click signin if the user
+// accepts.
+class OneClickSigninDialogGtk {
+ public:
+  // Deletes self on close.  The given callback will be called if the
+  // user confirms the dialog.
+  OneClickSigninDialogGtk(GtkWindow* parent_window,
+                          const OneClickAcceptCallback& accept_callback);
+
+  void SendResponseForTest(int response_id);
+  void SetUseDefaultSettingsForTest(bool use_default_settings);
+
+ private:
+  ~OneClickSigninDialogGtk();
+
+  CHROMEGTK_CALLBACK_1(OneClickSigninDialogGtk, void, OnResponse, int);
+
+  GtkWidget* const dialog_;
+  GtkWidget* const use_default_settings_checkbox_;
+  const OneClickAcceptCallback accept_callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(OneClickSigninDialogGtk);
+};
+
+#endif  // CHROME_BROWSER_UI_GTK_ONE_CLICK_SIGNIN_DIALOG_GTK_H_