Add a modal confirmation dialog to the enterprise profile sign-in flow.

chrome/browser/ui/webui/signin/profile_signin_confirmation_ui.h

Index: chrome/browser/ui/webui/signin/profile_signin_confirmation_ui.h
diff --git a/chrome/browser/ui/webui/signin/profile_signin_confirmation_ui.h b/chrome/browser/ui/webui/signin/profile_signin_confirmation_ui.h
new file mode 100644
index 0000000000000000000000000000000000000000..cd772401bd458e606242623cd1d2119d41490a38
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+++ b/chrome/browser/ui/webui/signin/profile_signin_confirmation_ui.h
@@ -0,0 +1,20 @@
+// 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 CHROME_BROWSER_UI_WEBUI_SIGNIN_PROFILE_SIGNIN_CONFIRMATION_UI_H_
+#define CHROME_BROWSER_UI_WEBUI_SIGNIN_PROFILE_SIGNIN_CONFIRMATION_UI_H_
+
+#include "chrome/browser/ui/webui/constrained_web_dialog_ui.h"
+
+// A WebUI tab-modal dialog to confirm signin with a managed account.
+class ProfileSigninConfirmationUI : public ConstrainedWebDialogUI {
+ public:
+  explicit ProfileSigninConfirmationUI(content::WebUI* web_ui);
+  virtual ~ProfileSigninConfirmationUI();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ProfileSigninConfirmationUI);
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_SIGNIN_PROFILE_SIGNIN_CONFIRMATION_UI_H_