sync: Remove ClearUserData command.

sync/internal_api/public/sync_manager.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 SYNC_INTERNAL_API_PUBLIC_SYNC_MANAGER_H_
 #define SYNC_INTERNAL_API_PUBLIC_SYNC_MANAGER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 291 matching lines @@
     virtual void OnInitializationComplete(
         const browser_sync::WeakHandle<browser_sync::JsBackend>&
             js_backend, bool success) = 0;
 
     // We are no longer permitted to communicate with the server. Sync should
     // be disabled and state cleaned up at once.  This can happen for a number
     // of reasons, e.g. swapping from a test instance to production, or a
     // global stop syncing operation has wiped the store.
     virtual void OnStopSyncingPermanently() = 0;
 
-    // After a request to clear server data, these callbacks are invoked to
-    // indicate success or failure.
-    virtual void OnClearServerDataSucceeded() = 0;
-    virtual void OnClearServerDataFailed() = 0;
-
     // Called when the set of encrypted types or the encrypt
     // everything flag has been changed.  Note that encryption isn't
     // complete until the OnEncryptionComplete() notification has been
     // sent (see below).
     //
     // |encrypted_types| will always be a superset of
     // Cryptographer::SensitiveTypes().  If |encrypt_everything| is
     // true, |encrypted_types| will be the set of all known types.
     //
     // Until this function is called, observers can assume that the
@@ skipping 112 matching lines @@
 
   // Switches the mode of operation to CONFIGURATION_MODE and
   // schedules a config task to fetch updates for |types|.
   void RequestConfig(const browser_sync::ModelSafeRoutingInfo& routing_info,
                      const syncable::ModelTypeSet& types,
                      sync_api::ConfigureReason reason);
 
   void RequestCleanupDisabledTypes(
       const browser_sync::ModelSafeRoutingInfo& routing_info);
 
-  // Request a clearing of all data on the server
-  void RequestClearServerData();
-
   // Adds a listener to be notified of sync events.
   // NOTE: It is OK (in fact, it's probably a good idea) to call this before
   // having received OnInitializationCompleted.
   void AddObserver(Observer* observer);
 
   // Remove the given observer.  Make sure to call this if the
   // Observer is being destroyed so the SyncManager doesn't
   // potentially dereference garbage.
   void RemoveObserver(Observer* observer);
 
@@ skipping 102 matching lines @@
     sync_api::UserShare* share);
 
 const char* ConnectionStatusToString(ConnectionStatus status);
 
 // Returns the string representation of a PassphraseRequiredReason value.
 const char* PassphraseRequiredReasonToString(PassphraseRequiredReason reason);
 
 }  // namespace sync_api
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_SYNC_MANAGER_H_