[USS] Move GetAllNodes from backend to controller

components/sync/core_impl/sync_manager_impl.h

 // Copyright 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 COMPONENTS_SYNC_CORE_IMPL_SYNC_MANAGER_IMPL_H_
 #define COMPONENTS_SYNC_CORE_IMPL_SYNC_MANAGER_IMPL_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 83 matching lines @@
   void ShutdownOnSyncThread(ShutdownReason reason) override;
   UserShare* GetUserShare() override;
   std::unique_ptr<syncer_v2::ModelTypeConnector> GetModelTypeConnectorProxy()
       override;
   const std::string cache_guid() override;
   bool ReceivedExperiment(Experiments* experiments) override;
   bool HasUnsyncedItems() override;
   SyncEncryptionHandler* GetEncryptionHandler() override;
   std::vector<std::unique_ptr<ProtocolEvent>> GetBufferedProtocolEvents()
       override;
-  std::unique_ptr<base::ListValue> GetAllNodesForType(
-      syncer::ModelType type) override;
   void RegisterDirectoryTypeDebugInfoObserver(
       syncer::TypeDebugInfoObserver* observer) override;
   void UnregisterDirectoryTypeDebugInfoObserver(
       syncer::TypeDebugInfoObserver* observer) override;
   bool HasDirectoryTypeDebugInfoObserver(
       syncer::TypeDebugInfoObserver* observer) override;
   void RequestEmitDebugInfo() override;
   void ClearServerData(const ClearServerDataCallback& callback) override;
   void OnCookieJarChanged(bool account_mismatch, bool empty_jar) override;
 
@@ skipping 220 matching lines @@
   std::unique_ptr<SyncEncryptionHandlerImpl> sync_encryption_handler_;
 
   base::WeakPtrFactory<SyncManagerImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncManagerImpl);
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_CORE_IMPL_SYNC_MANAGER_IMPL_H_