[Easy Unlock] Update handling of the trial easy unlock/signin run

chrome/browser/signin/easy_unlock_screenlock_state_handler.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_SIGNIN_EASY_UNLOCK_SCREENLOCK_STATE_HANDLER_H_
 #define CHROME_BROWSER_SIGNIN_EASY_UNLOCK_SCREENLOCK_STATE_HANDLER_H_
 
 #include <string>
 
 #include "base/strings/string16.h"
@@ skipping 37 matching lines @@
   // Hard lock states.
   enum HardlockState {
     NO_HARDLOCK = 0,           // Hard lock is not enforced. This is default.
     USER_HARDLOCK = 1 << 0,    // Hard lock is requested by user.
     PAIRING_CHANGED = 1 << 1,  // Hard lock because pairing data is changed.
     NO_PAIRING = 1 << 2        // Hard lock because there is no pairing data.
   };
 
   // |user_email|: The email for the user associated with the profile to which
   //     this class is attached.
-  // |pref_service|: The profile preferences.
+  // |initial_hardlock_state|: The initial hardlock state.
   // |screenlock_bridge|: The screenlock bridge used to update the screen lock
   //     state.
   EasyUnlockScreenlockStateHandler(const std::string& user_email,
                                    HardlockState initial_hardlock_state,
-                                   PrefService* pref_service,
                                    ScreenlockBridge* screenlock_bridge);
   virtual ~EasyUnlockScreenlockStateHandler();
 
   // Changes internal state to |new_state| and updates the user's screenlock
   // accordingly.
   void ChangeState(State new_state);
 
   // Updates the screenlock state.
   void SetHardlockState(HardlockState new_state);
 
   // Shows the hardlock UI if the hardlock_state_ is not NO_HARDLOCK.
   void MaybeShowHardlockUI();
 
+  // Marks the current screenlock state as the one for trial Easy Unlock run.
+  void SetTrialRun();
+
  private:
   // ScreenlockBridge::Observer:
   virtual void OnScreenDidLock() override;
   virtual void OnScreenDidUnlock() override;
   virtual void OnFocusedUserChanged(const std::string& user_id) override;
 
+  // Forces refresh of the Easy Unlock screenlock UI.
+  void RefreshScreenlockState();
+
   void ShowHardlockUI();
 
   // Updates icon's tooltip options.
   // |trial_run|: Whether the trial Easy Unlock run is in progress.
   void UpdateTooltipOptions(
       bool trial_run,
       ScreenlockBridge::UserPodCustomIconOptions* icon_options);
 
-  // Whether this is the first, trial Easy Unlock run. If this is the case, a
-  // tutorial message should be shown and hard-locking be disabled in
-  // Authenticated state. The trial run will be active if Easy Unlock never
-  // entered Authenticated state (across sessions).
-  bool IsTrialRun();
-
-  // Sets user preference that marks trial run completed.
-  void MarkTrialRunComplete();
-
   // Gets the name to be used for the device. The name depends on the device
   // type (example values: Chromebook and Chromebox).
   base::string16 GetDeviceName();
 
   // Updates the screenlock auth type if it has to be changed.
   void UpdateScreenlockAuthType();
 
   State state_;
   std::string user_email_;
-  PrefService* pref_service_;
   ScreenlockBridge* screenlock_bridge_;
 
   // State of hardlock.
   HardlockState hardlock_state_;
   bool hardlock_ui_shown_;
 
+  // Whether this is the trial Easy Unlock run. If this is the case, a
+  // tutorial message should be shown and hard-locking be disabled. The trial
+  // run should be set if the screen was locked by the Easy Unlock setup app.
+  bool is_trial_run_;
+
   DISALLOW_COPY_AND_ASSIGN(EasyUnlockScreenlockStateHandler);
 };
 
 #endif  // CHROME_BROWSER_SIGNIN_EASY_UNLOCK_SCREENLOCK_STATE_HANDLER_H_