[USS] Move GetAllNodes from backend to controller

components/sync/core/sync_manager.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_SYNC_MANAGER_H_
 #define COMPONENTS_SYNC_CORE_SYNC_MANAGER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 348 matching lines @@
   // Note: opens a transaction.  May be called on any thread.
   virtual bool ReceivedExperiment(Experiments* experiments) = 0;
 
   // Uses a read-only transaction to determine if the directory being synced has
   // any remaining unsynced items.  May be called on any thread.
   virtual bool HasUnsyncedItems() = 0;
 
   // Returns the SyncManager's encryption handler.
   virtual SyncEncryptionHandler* GetEncryptionHandler() = 0;
 
-  virtual std::unique_ptr<base::ListValue> GetAllNodesForType(
-      syncer::ModelType type) = 0;
-
   // Ask the SyncManager to fetch updates for the given types.
   virtual void RefreshTypes(ModelTypeSet types) = 0;
 
   // Returns any buffered protocol events.  Does not clear the buffer.
   virtual std::vector<std::unique_ptr<ProtocolEvent>>
   GetBufferedProtocolEvents() = 0;
 
   // Functions to manage registrations of DebugInfoObservers.
   virtual void RegisterDirectoryTypeDebugInfoObserver(
       syncer::TypeDebugInfoObserver* observer) = 0;
@@ skipping 15 matching lines @@
 
   // Updates Sync's tracking of whether the cookie jar has a mismatch with the
   // chrome account. See ClientConfigParams proto message for more info.
   // Note: this does not trigger a sync cycle. It just updates the sync context.
   virtual void OnCookieJarChanged(bool account_mismatch, bool empty_jar) = 0;
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_CORE_SYNC_MANAGER_H_