Fixes History page keeps on loading when signed in with Passphrase

ios/chrome/browser/sync/sync_setup_service.h

 // Copyright 2012 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 IOS_CHROME_BROWSER_SYNC_SYNC_SETUP_SERVICE_H_
 #define IOS_CHROME_BROWSER_SYNC_SYNC_SETUP_SERVICE_H_
 
 #include <map>
 #include <memory>
 
@@ skipping 42 matching lines @@
 
   // Returns the |syncer::ModelType| associated to the given
   // |SyncableDatatypes|.
   syncer::ModelType GetModelType(SyncableDatatype datatype);
 
   // Returns whether sync is enabled.
   virtual bool IsSyncEnabled() const;
   // Enables or disables sync. Changes won't take effect in the sync backend
   // before the next call to |CommitChanges|.
   virtual void SetSyncEnabled(bool sync_enabled);
+  // Returns whether secondary passphrase is enabled.
+  virtual bool IsSecondaryPassphraseEnabled() const;
 
   // Returns all currently enabled datatypes.
   syncer::ModelTypeSet GetDataTypes() const;
   // Returns whether the given datatype is enabled.
   virtual bool IsDataTypeEnabled(syncer::ModelType datatype) const;
   // Enables or disables the given datatype. To be noted: this can be called at
   // any time, but will only be meaningful if |IsSyncEnabled| is true and
   // |IsSyncingAllDataTypes| is false. Changes won't take effect in the sync
   // backend before the next call to |CommitChanges|.
   void SetDataTypeEnabled(syncer::ModelType datatype, bool enabled);
@@ skipping 36 matching lines @@
   PrefService* const prefs_;
   syncer::ModelTypeSet user_selectable_types_;
 
   // Prevents Sync from running until configuration is complete.
   std::unique_ptr<syncer::SyncSetupInProgressHandle> sync_blocker_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncSetupService);
 };
 
 #endif  // IOS_CHROME_BROWSER_SYNC_SYNC_SETUP_SERVICE_H_