Create OOBE screen for Voice Interaction value proposition

chrome/browser/ui/webui/chromeos/login/voice_interaction_value_prop_screen_handler.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_CHROMEOS_LOGIN_VOICE_INTERACTION_VALUE_PROP_SCREEN_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_VOICE_INTERACTION_VALUE_PROP_SCREEN_HANDLER_H_
+
+#include <memory>
+#include <string>
+
+#include "base/macros.h"
+#include "chrome/browser/chromeos/login/screens/voice_interaction_value_prop_screen_view.h"
+#include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
+
+namespace chromeos {
+
+class VoiceInteractionValuePropScreenHandler
+    : public BaseScreenHandler,
+      public VoiceInteractionValuePropScreenView {
+ public:
+  VoiceInteractionValuePropScreenHandler();
+  ~VoiceInteractionValuePropScreenHandler() override;
+
+  // BaseScreenHandler:
+  void DeclareLocalizedValues(
+      ::login::LocalizedValuesBuilder* builder) override;
+
+  // VoiceInteractionValuePropScreenView:
+  void Bind(VoiceInteractionValuePropScreen* screen) override;
+  void Unbind() override;
+  void Show() override;
+  void Hide() override;
+
+ private:
+  // BaseScreenHandler:
+  void Initialize() override;
+
+  VoiceInteractionValuePropScreen* screen_ = nullptr;
+
+  // Whether the screen should be shown right after initialization.
+  bool show_on_init_ = false;
+
+  DISALLOW_COPY_AND_ASSIGN(VoiceInteractionValuePropScreenHandler);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_VOICE_INTERACTION_VALUE_PROP_SCREEN_HANDLER_H_