[Sync] Rename SyncEnabledAndLoggedIn() to CanStartSync().

components/sync_driver/fake_sync_service.h

 // Copyright 2015 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 COMPONENTS_SYNC_DRIVER_FAKE_SYNC_SERVICE_H_
 #define COMPONENTS_SYNC_DRIVER_FAKE_SYNC_SERVICE_H_
 
 #include "components/sync_driver/sync_service.h"
 #include "google_apis/gaia/google_service_auth_error.h"
 
 namespace sync_driver {
 
 // Fake implementation of sync_driver::SyncService, used for testing.
 class FakeSyncService : public sync_driver::SyncService {
  public:
   FakeSyncService();
   ~FakeSyncService() override;
 
  private:
   // sync_driver::SyncService:
   bool HasSyncSetupCompleted() const override;
   bool IsSyncAllowed() const override;
   bool IsSyncActive() const override;
   syncer::ModelTypeSet GetActiveDataTypes() const override;
   void AddObserver(sync_driver::SyncServiceObserver* observer) override;
   void RemoveObserver(sync_driver::SyncServiceObserver* observer) override;
   bool HasObserver(
       const sync_driver::SyncServiceObserver* observer) const override;
-  bool IsSyncEnabledAndLoggedIn() override;
+  bool CanSyncStart() const override;
   void DisableForUser() override;
   void RequestStop() override;
   void RequestStart() override;
   syncer::ModelTypeSet GetPreferredDataTypes() const override;
   void OnUserChoseDatatypes(bool sync_everything,
                             syncer::ModelTypeSet chosen_types) override;
   void SetSyncSetupCompleted() override;
   bool FirstSetupInProgress() const override;
   void SetSetupInProgress(bool setup_in_progress) override;
   bool setup_in_progress() const override;
@@ skipping 12 matching lines @@
   // sync_driver::DataTypeEncryptionHandler:
   bool IsPassphraseRequired() const override;
   syncer::ModelTypeSet GetEncryptedDataTypes() const override;
 
   GoogleServiceAuthError error_;
 };
 
 }  // namespace sync_driver
 
 #endif  // COMPONENTS_SYNC_DRIVER_FAKE_SYNC_SERVICE_H_