cros: Fold NetworkErrorModel into NetworkErrorView.

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

 // Copyright (c) 2012 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_ERROR_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_ERROR_SCREEN_H_
 
 #include <memory>
 
+#include "base/callback_list.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
+#include "chrome/browser/chromeos/login/screens/base_screen.h"
 #include "chrome/browser/chromeos/login/screens/network_error.h"
-#include "chrome/browser/chromeos/login/screens/network_error_model.h"
 #include "chrome/browser/chromeos/settings/device_settings_service.h"
 #include "chrome/browser/ui/webui/chromeos/login/network_state_informer.h"
 #include "chromeos/login/auth/login_performer.h"
 
 namespace chromeos {
 
 class BaseScreenDelegate;
 class CaptivePortalWindowProxy;
 class NetworkErrorView;
 
 // Controller for the error screen.
-class ErrorScreen : public NetworkErrorModel, public LoginPerformer::Delegate {
+class ErrorScreen : public BaseScreen, public LoginPerformer::Delegate {
  public:
-  typedef std::unique_ptr<base::CallbackList<void()>::Subscription>
-      ConnectRequestCallbackSubscription;
+  using ConnectRequestCallbackSubscription =
+      std::unique_ptr<base::CallbackList<void()>::Subscription>;
+
+  // TODO(jdufault): Some of these are no longer used and can be removed. See
+  // crbug.com/672142.
+  static const char kUserActionConfigureCertsButtonClicked[];
+  static const char kUserActionDiagnoseButtonClicked[];
+  static const char kUserActionLaunchOobeGuestSessionClicked[];
+  static const char kUserActionLocalStateErrorPowerwashButtonClicked[];
+  static const char kUserActionRebootButtonClicked[];
+  static const char kUserActionShowCaptivePortalClicked[];
+  static const char kUserActionConnectRequested[];
 
   ErrorScreen(BaseScreenDelegate* base_screen_delegate, NetworkErrorView* view);
   ~ErrorScreen() override;
 
-  // NetworkErrorModel:
+  // Toggles the guest sign-in prompt.
+  void AllowGuestSignin(bool allowed);
+
+  // Toggles the offline sign-in.
+  void AllowOfflineLogin(bool allowed);
+
+  // Initializes captive portal dialog and shows that if needed.
+  virtual void FixCaptivePortal();

[achuithb, 2017/01/20 23:06:55]

Why is this virtual?

[jdufault, 2017/01/25 00:51:34]

It is overridden in a mock.

+
+  NetworkError::UIState GetUIState() const;
+  NetworkError::ErrorState GetErrorState() const;
+
+  // Returns id of the screen behind error screen ("caller" screen).
+  // Returns OobeScreen::SCREEN_UNKNOWN if error screen isn't the current
+  // screen.
+  OobeScreen GetParentScreen() const;
+
+  // Called when we're asked to hide captive portal dialog.
+  void HideCaptivePortal();
+
+  // This method is called, when view is being destroyed. Note, if model
+  // is destroyed earlier then it has to call Unbind().
+  void OnViewDestroyed(NetworkErrorView* view);
+
+  // Sets current UI state.
+  virtual void SetUIState(NetworkError::UIState ui_state);

[achuithb, 2017/01/20 23:06:55]

why is this virtual?

[jdufault, 2017/01/25 00:51:34]

It is overridden in a mock.

+
+  // Sets current error screen content according to current UI state,
+  // |error_state|, and |network|.
+  virtual void SetErrorState(NetworkError::ErrorState error_state,

[achuithb, 2017/01/20 23:06:55]

why is this virtual?

[jdufault, 2017/01/25 00:51:34]

It is overridden in a mock.

+                             const std::string& network);
+
+  // Sets "parent screen" i.e. one that has initiated this network error screen
+  // instance.
+  void SetParentScreen(OobeScreen parent_screen);
+
+  // Sets callback that is called on hide.
+  void SetHideCallback(const base::Closure& on_hide);
+
+  // Shows captive portal dialog.
+  void ShowCaptivePortal();
+
+  // Toggles the connection pending indicator.
+  void ShowConnectingIndicator(bool show);
+
+  // Register a callback to be invoked when the user indicates that an attempt
+  // to connect to the network should be made.
+  ConnectRequestCallbackSubscription RegisterConnectRequestCallback(
+      const base::Closure& callback);
+
+  // BaseScreen overrides:
   void Show() override;
   void Hide() override;
   void OnShow() override;
   void OnHide() override;
   void OnUserAction(const std::string& action_id) override;
   void OnContextKeyUpdated(const ::login::ScreenContext::KeyType& key) override;
-  void AllowGuestSignin(bool allowed) override;
-  void AllowOfflineLogin(bool allowed) override;
-  void FixCaptivePortal() override;
-  NetworkError::UIState GetUIState() const override;
-  NetworkError::ErrorState GetErrorState() const override;
-  OobeScreen GetParentScreen() const override;
-  void HideCaptivePortal() override;
-  void OnViewDestroyed(NetworkErrorView* view) override;
-  void SetUIState(NetworkError::UIState ui_state) override;
-  void SetErrorState(NetworkError::ErrorState error_state,
-                     const std::string& network) override;
-  void SetParentScreen(OobeScreen parent_screen) override;
-  void SetHideCallback(const base::Closure& on_hide) override;
-  void ShowCaptivePortal() override;
-  void ShowConnectingIndicator(bool show) override;
 
-  // LoginPerformer::Delegate implementation:
+  // LoginPerformer::Delegate overrides:
   void OnAuthFailure(const AuthFailure& error) override;
   void OnAuthSuccess(const UserContext& user_context) override;
   void OnOffTheRecordAuthSuccess() override;
   void OnPasswordChangeDetected() override;
   void WhiteListCheckFailed(const std::string& email) override;
   void PolicyLoadFailed() override;
   void SetAuthFlowOffline(bool offline) override;
 
-  // Register a callback to be invoked when the user indicates that an attempt
-  // to connect to the network should be made.
-  ConnectRequestCallbackSubscription RegisterConnectRequestCallback(
-      const base::Closure& callback);
-
- private:

[achuithb, 2017/01/20 23:06:55]

Looks like you dropped this. 

[jdufault, 2017/01/25 00:51:34]

Done.

   // Default hide_closure for Hide().
   void DefaultHideCallback();
 
   // Handle user action to configure certificates.
   void OnConfigureCerts();
 
   // Handle user action to diagnose network configuration.
   void OnDiagnoseButtonClicked();
 
   // Handle user action to launch guest session from out-of-box.
@@ skipping 36 matching lines @@
   base::CallbackList<void()> connect_request_callbacks_;
 
   base::WeakPtrFactory<ErrorScreen> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ErrorScreen);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_ERROR_SCREEN_H_