Take 2: sync changes to support encryption

chrome/browser/sync/profile_sync_service.h

 // Copyright (c) 2006-2008 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_H_
 #define CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_
 
 #include <string>
 #include <map>
 
@@ skipping 285 matching lines @@
   // should be advertised to the user).  These will typically only change
   // via a command-line option.  See class comment for more on what it means
   // for a datatype to be Registered.
   virtual void GetRegisteredDataTypes(
       syncable::ModelTypeSet* registered_types) const;
 
   // Checks whether the Cryptographer is ready to encrypt and decrypt updates
   // for sensitive data types.
   virtual bool IsCryptographerReady() const;
 
+  // Sets the Cryptographer's passphrase. This will check asynchronously whether
+  // the passphrase is valid and notify ProfileSyncServiceObservers via the
+  // NotificationService when the outcome is known.
+  virtual void SetPassphrase(const std::string& passphrase);
+
  protected:
   // Used by ProfileSyncServiceMock only.
   //
   // TODO(akalin): Separate this class out into an abstract
   // ProfileSyncService interface and a ProfileSyncServiceImpl class
   // so we don't need this hack anymore.
   ProfileSyncService();
 
   // Call this after any of the subsystems being synced (the bookmark
   // model and the sync backend) finishes its initialization.  When everything
@@ skipping 126 matching lines @@
 
   NotificationRegistrar registrar_;
 
   ScopedRunnableMethodFactory<ProfileSyncService>
     scoped_runnable_method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncService);
 };
 
 #endif  // CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_