[USS] Move GetAllNodes from backend to controller

components/sync/driver/glue/sync_backend_host_impl.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 "components/sync/driver/glue/sync_backend_host_impl.h"
 
 #include <map>
 #include <utility>
 #include <vector>
 
@@ skipping 502 matching lines @@
 }
 
 void SyncBackendHostImpl::DisableDirectoryTypeDebugInfoForwarding() {
   DCHECK(initialized());
   registrar_->sync_thread()->task_runner()->PostTask(
       FROM_HERE,
       base::Bind(&SyncBackendHostCore::DisableDirectoryTypeDebugInfoForwarding,
                  core_));
 }
 
-void SyncBackendHostImpl::GetAllNodesForTypes(
-    syncer::ModelTypeSet types,
-    base::Callback<void(const std::vector<syncer::ModelType>&,
-                        std::vector<std::unique_ptr<base::ListValue>>)>
-        callback) {
-  DCHECK(initialized());
-  registrar_->sync_thread()->task_runner()->PostTask(
-      FROM_HERE, base::Bind(&SyncBackendHostCore::GetAllNodesForTypes, core_,
-                            types, frontend_task_runner_, callback));
-}
-
 void SyncBackendHostImpl::InitCore(
     std::unique_ptr<DoInitializeOptions> options) {
   registrar_->sync_thread()->task_runner()->PostTask(
       FROM_HERE, base::Bind(&SyncBackendHostCore::DoInitialize, core_.get(),
                             base::Passed(&options)));
 }
 
 void SyncBackendHostImpl::RequestConfigureSyncer(
     syncer::ConfigureReason reason,
     syncer::ModelTypeSet to_download,
@@ skipping 306 matching lines @@
     const syncer::SyncManager::ClearServerDataCallback& frontend_callback) {
   DCHECK(ui_thread_->BelongsToCurrentThread());
   frontend_callback.Run();
 }
 
 }  // namespace browser_sync
 
 #undef SDVLOG
 
 #undef SLOG