sync: remove GetAuthenticatedUsername from ProfileSyncService/SyncBackendHost.

chrome/browser/sync/profile_sync_service_mock.h

 // Copyright (c) 2011 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_SYNC_PROFILE_SYNC_SERVICE_MOCK_H_
 #define CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_MOCK_H_
 #pragma once
 
 #include <string>
 
 #include "base/memory/weak_ptr.h"
 #include "base/string16.h"
 #include "chrome/browser/sync/glue/change_processor.h"
 #include "chrome/browser/sync/glue/data_type_controller.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/protocol/sync_protocol_error.h"
 #include "chrome/browser/sync/syncable/model_type.h"
 #include "chrome/common/net/gaia/google_service_auth_error.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 class ProfileSyncServiceMock : public ProfileSyncService {
  public:
   ProfileSyncServiceMock();
+  explicit ProfileSyncServiceMock(Profile* profile);
   virtual ~ProfileSyncServiceMock();
 
+  // A utility used by sync tests to create a TestingProfile with a Google
+  // Services username stored in a (Testing)PrefService.
+  static Profile* MakeSignedInTestingProfile();
+
   MOCK_METHOD0(DisableForUser, void());
   MOCK_METHOD2(OnBackendInitialized,
                void(const browser_sync::WeakHandle<browser_sync::JsBackend>&,
                     bool));
   MOCK_METHOD0(OnSyncCycleCompleted, void());
   MOCK_METHOD0(OnAuthError, void());
   MOCK_METHOD4(OnUserSubmittedAuth,
                void(const std::string& username,
                     const std::string& password,
                     const std::string& captcha,
@@ skipping 34 matching lines @@
   MOCK_METHOD1(OnActionableError, void(
       const browser_sync::SyncProtocolError&));
 
   MOCK_CONST_METHOD0(IsPassphraseRequired, bool());
   MOCK_CONST_METHOD0(IsPassphraseRequiredForDecryption, bool());
 
   MOCK_METHOD0(ShowErrorUI, void());
 };
 
 #endif  // CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_MOCK_H_