Opens the HaTS dialog with an empty HTML

chrome/browser/ui/webui/chromeos/hats/hats_ui.h

Index: chrome/browser/ui/webui/chromeos/hats/hats_ui.h
diff --git a/chrome/browser/ui/webui/chromeos/hats/hats_ui.h b/chrome/browser/ui/webui/chromeos/hats/hats_ui.h
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index 0000000000000000000000000000000000000000..096a67a407c812a6aa62685ec3c5bcc6680d12fa
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+// Copyright (c) 2016 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_CHROMEOS_HATS_HATS_UI_H_
+#define CHROME_BROWSER_UI_WEBUI_CHROMEOS_HATS_HATS_UI_H_
+
+#include "base/macros.h"
+#include "ui/web_dialogs/web_dialog_ui.h"
+
+namespace chromeos {
+
+namespace options {
+
+class CoreChromeOSOptionsHandler;
+class BluetoothOptionsHandler;
+
+} // namespace options
+
+// A WebUI to host HaTS survey.
+class HatsUI : public ui::WebDialogUI {
+ public:
+  explicit HatsUI(content::WebUI* web_ui);
+  ~HatsUI() override;
+
+ private:
+  void SurveyCompleted(const base::ListValue* args);
+
+  DISALLOW_COPY_AND_ASSIGN(HatsUI);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_HATS_HATS_UI_H_