Implement debugging local unlock keys in chrome://proximity-auth.

chrome/browser/signin/easy_unlock_service.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_SERVICE_H_
 #define CHROME_BROWSER_SIGNIN_EASY_UNLOCK_SERVICE_H_
 
 #include <set>
 #include <string>
 
@@ skipping 210 matching lines @@
   void AddObserver(EasyUnlockServiceObserver* observer);
   void RemoveObserver(EasyUnlockServiceObserver* observer);
 
   // ProximityAuthUIDelegate:
   PrefService* GetPrefService() override;
   scoped_ptr<proximity_auth::SecureMessageDelegate>
   CreateSecureMessageDelegate() override;
   scoped_ptr<proximity_auth::CryptAuthClientFactory>
   CreateCryptAuthClientFactory() override;
   cryptauth::DeviceClassifier GetDeviceClassifier() override;
+  std::string GetAccountId() override;
   gcm::GCMDriver* GetGCMDriver() override;
 
   ChromeProximityAuthClient* proximity_auth_client() {
     return &proximity_auth_client_;
   }
 
  protected:
   explicit EasyUnlockService(Profile* profile);
   ~EasyUnlockService() override;
 
@@ skipping 128 matching lines @@
   bool tpm_key_checked_;
 
   base::ObserverList<EasyUnlockServiceObserver> observers_;
 
   base::WeakPtrFactory<EasyUnlockService> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EasyUnlockService);
 };
 
 #endif  // CHROME_BROWSER_SIGNIN_EASY_UNLOCK_SERVICE_H_