HID-detection screen moved to screenContext.

chrome/browser/chromeos/login/screens/hid_detection_view.h

+// Copyright 2014 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_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_VIEW_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_VIEW_H_
+
+#include <string>
+
+#include "base/callback.h"
+
+namespace chromeos {
+
+class HIDDetectionModel;
+
+// Interface between HID detection screen and its representation, either WebUI
+// or Views one. Note, do not forget to call OnViewDestroyed in the
+// dtor.
+class HIDDetectionView {
+ public:
+  virtual ~HIDDetectionView() {}
+
+  virtual void PrepareToShow() = 0;
+  virtual void Show() = 0;
+  virtual void Hide() = 0;
+  virtual void Bind(HIDDetectionModel& model) = 0;
+  virtual void Unbind() = 0;
+  // Checks if we should show the screen or enough devices already present.
+  // Calls corresponding set of actions based on the bool result.
+  virtual void CheckIsScreenRequired(
+      const base::Callback<void(bool)>& on_check_done) = 0;
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_VIEW_H_