sync: Remove ClearUserData command.

chrome/browser/sync/glue/sync_backend_host.h

 // Copyright (c) 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 CHROME_BROWSER_SYNC_GLUE_SYNC_BACKEND_HOST_H_
 #define CHROME_BROWSER_SYNC_GLUE_SYNC_BACKEND_HOST_H_
 #pragma once
 
 #include <string>
 
@@ skipping 61 matching lines @@
   virtual void OnSyncConfigureRetry() = 0;
 
   // The status of the connection to the sync server has changed.
   virtual void OnConnectionStatusChange(
       sync_api::ConnectionStatus status) = 0;
 
   // We are no longer permitted to communicate with the server. Sync should
   // be disabled and state cleaned up at once.
   virtual void OnStopSyncingPermanently() = 0;
 
-  // Called to handle success/failure of clearing server data
-  virtual void OnClearServerDataSucceeded() = 0;
-  virtual void OnClearServerDataFailed() = 0;
-
   // The syncer requires a passphrase to decrypt sensitive updates. This is
   // called when the first sensitive data type is setup by the user and anytime
   // the passphrase is changed by another synced client. |reason| denotes why
   // the passphrase was required. |pending_keys| is a copy of the
   // cryptographer's pending keys to be passed on to the frontend in order to
   // be cached.
   virtual void OnPassphraseRequired(
       sync_api::PassphraseRequiredReason reason,
       const sync_pb::EncryptedData& pending_keys) = 0;
 
@@ skipping 147 matching lines @@
   // be called synchronously with the data type's model association so
   // no changes are dropped between model association and change
   // processor activation.
   void ActivateDataType(
       syncable::ModelType type, ModelSafeGroup group,
       ChangeProcessor* change_processor);
 
   // Deactivates change processing for the given data type.
   void DeactivateDataType(syncable::ModelType type);
 
-  // Asks the server to clear all data associated with ChromeSync.
-  virtual bool RequestClearServerData();
-
   // Called on |frontend_loop_| to obtain a handle to the UserShare needed
   // for creating transactions.
   sync_api::UserShare* GetUserShare() const;
 
   // Called from any thread to obtain current status information in detailed or
   // summarized form.
   Status GetDetailedStatus();
   sessions::SyncSessionSnapshot GetLastSessionSnapshot() const;
 
   // Determines if the underlying sync engine has made any local changes to
@@ skipping 179 matching lines @@
   // everything flag changes.
   void NotifyEncryptedTypesChanged(
       syncable::ModelTypeSet encrypted_types,
       bool encrypt_everything);
 
   // Invoked when sync finishes encrypting new datatypes.
   void NotifyEncryptionComplete();
 
   void HandleStopSyncingPermanentlyOnFrontendLoop();
 
-  // Called to handle success/failure of clearing server data
-  void HandleClearServerDataSucceededOnFrontendLoop();
-  void HandleClearServerDataFailedOnFrontendLoop();
-
   // Dispatched to from OnConnectionStatusChange to handle updating
   // frontend UI components.
   void HandleConnectionStatusChangeOnFrontendLoop(
       sync_api::ConnectionStatus status);
 
   // Called when configuration of the Nigori node has completed as
   // part of the initialization process.
   void HandleNigoriConfigurationCompletedOnFrontendLoop(
       const WeakHandle<JsBackend>& js_backend,
       syncable::ModelTypeSet failed_configuration_types);
@@ skipping 55 matching lines @@
 
   // UI-thread cache of the last SyncSessionSnapshot received from syncapi.
   sessions::SyncSessionSnapshot last_snapshot_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncBackendHost);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_SYNC_BACKEND_HOST_H_