Add internals page for DICE

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

+// Copyright 2017 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_SIGNIN_DICE_INTERNALS_UI_H_
+#define CHROME_BROWSER_UI_WEBUI_SIGNIN_SIGNIN_DICE_INTERNALS_UI_H_
+
+#include "base/macros.h"
+#include "content/public/browser/web_ui_controller.h"
+
+// The implementation for the chrome://signin-dice-internals page.
+class SigninDiceInternalsUI : public content::WebUIController {
+ public:
+  explicit SigninDiceInternalsUI(content::WebUI* web_ui);

[droger, 2017/06/16 13:29:15]

Nit: forward declaration for WebUI.

[msarda, 2017/06/20 10:16:43]

Not needed s it includes WebUIController that already has it.

+  ~SigninDiceInternalsUI() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(SigninDiceInternalsUI);
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_SIGNIN_SIGNIN_DICE_INTERNALS_UI_H_