sync: Remove dead code related to ClearUserData

chrome/browser/sync/glue/sync_backend_host_core.cc

 // Copyright 2013 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.
 
 #include "chrome/browser/sync/glue/sync_backend_host_core.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/metrics/histogram.h"
 #include "chrome/browser/sync/glue/device_info.h"
@@ skipping 243 matching lines @@
     syncer::BootstrapTokenType type) {
   if (!sync_loop_)
     return;
   DCHECK_EQ(base::MessageLoop::current(), sync_loop_);
   host_.Call(FROM_HERE,
              &SyncBackendHostImpl::PersistEncryptionBootstrapToken,
              bootstrap_token,
              type);
 }
 
-void SyncBackendHostCore::OnStopSyncingPermanently() {
-  if (!sync_loop_)
-    return;
-  DCHECK_EQ(base::MessageLoop::current(), sync_loop_);
-  host_.Call(
-      FROM_HERE,
-      &SyncBackendHostImpl::HandleStopSyncingPermanentlyOnFrontendLoop);
-}
-
 void SyncBackendHostCore::OnEncryptedTypesChanged(
     syncer::ModelTypeSet encrypted_types,
     bool encrypt_everything) {
   if (!sync_loop_)
     return;
   DCHECK_EQ(base::MessageLoop::current(), sync_loop_);
   // NOTE: We're in a transaction.
   host_.Call(
       FROM_HERE,
       &SyncBackendHostImpl::NotifyEncryptedTypesChanged,
@@ skipping 330 matching lines @@
       this, &SyncBackendHostCore::SaveChanges);
 }
 
 void SyncBackendHostCore::SaveChanges() {
   DCHECK_EQ(base::MessageLoop::current(), sync_loop_);
   sync_manager_->SaveChanges();
 }
 
 }  // namespace browser_sync