Fix few minor easy unlock bugs

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 20 matching lines @@
     // authenticated.
     STATE_PHONE_NOT_AUTHENTICATED,
     // A phone eligible to unlock the device is found, but it's locked.
     STATE_PHONE_LOCKED,
     // A phone eligible to unlock the device is found, but does not have lock
     // screen enabled.
     STATE_PHONE_UNLOCKABLE,
     // A phone eligible to unlock the device is found, but it's not close enough
     // to be allowed to unlock the device.
     STATE_PHONE_NOT_NEARBY,
+    // An Easy Unlock enabled phone is found, but it is not allowed to unlock
+    // the device because it does not support reporting it;s lock screen state.

[xiyuan, 2014/08/19 20:17:13]

nit: it;s -> its

[tbarzic, 2014/08/19 20:24:59]

Done.

+    STATE_PHONE_UNSUPPORTED,
     // The device can be unlocked using Easy Unlock.
     STATE_AUTHENTICATED
   };
 
   // |user_email|: The email for the user associated with the profile to which
   //     this class is attached.
   // |pref_service|: The profile preferences.
   // |screenlock_bridge|: The screenlock bridge used to update the screen lock
   //     state.
   EasyUnlockScreenlockStateHandler(const std::string& user_email,
@@ skipping 34 matching lines @@
 
   State state_;
   std::string user_email_;
   PrefService* pref_service_;
   ScreenlockBridge* screenlock_bridge_;
 
   DISALLOW_COPY_AND_ASSIGN(EasyUnlockScreenlockStateHandler);
 };
 
 #endif  // CHROME_BROWSER_SIGNIN_EASY_UNLOCK_SCREENLOCK_STATE_HANDLER_H_