HID-detection screen moved to screenContext.

chrome/browser/chromeos/login/screens/hid_detection_model.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_MODEL_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_MODEL_H_
+
+#include "base/callback_forward.h"
+#include "chrome/browser/chromeos/login/screens/base_screen.h"
+
+namespace chromeos {
+
+class BaseScreenDelegate;
+class HIDDetectionView;
+
+class HIDDetectionModel : public BaseScreen {
+ public:
+  static const char kContextKeyKeyboardState[];
+  static const char kContextKeyMouseState[];
+  static const char kContextKeyNumKeysEnteredExpected[];
+  static const char kContextKeyNumKeysEnteredPinCode[];
+  static const char kContextKeyPinCode[];
+  static const char kContextKeyMouseDeviceName[];
+  static const char kContextKeyKeyboardDeviceName[];
+  static const char kContextKeyKeyboardLabel[];
+  static const char kContextKeyContinueButtonEnabled[];
+
+  explicit HIDDetectionModel(BaseScreenDelegate* base_screen_delegate);
+  ~HIDDetectionModel() override;
+
+  // BaseScreen implementation:
+  std::string GetName() const override;
+
+  // Called when continue button was clicked.
+  virtual void OnContinueButtonClicked() = 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;
+
+  // This method is called, when view is being destroyed. Note, if model
+  // is destroyed earlier then it has to call Unbind().
+  virtual void OnViewDestroyed(HIDDetectionView* view) = 0;
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_MODEL_H_