Remove Sync JS generic request/reply framework

sync/internal_api/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 SYNC_INTERNAL_API_SYNC_MANAGER_H_
 #define SYNC_INTERNAL_API_SYNC_MANAGER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 138 matching lines @@
   virtual void OnMigrationRequested(ModelTypeSet types) OVERRIDE;
   virtual void OnProtocolEvent(const ProtocolEvent& event) OVERRIDE;
 
   // ServerConnectionEventListener implementation.
   virtual void OnServerConnectionEvent(
       const ServerConnectionEvent& event) OVERRIDE;
 
   // JsBackend implementation.
   virtual void SetJsEventHandler(
       const WeakHandle<JsEventHandler>& event_handler) OVERRIDE;
-  virtual void ProcessJsMessage(
-      const std::string& name, const JsArgList& args,
-      const WeakHandle<JsReplyHandler>& reply_handler) OVERRIDE;
 
   // DirectoryChangeDelegate implementation.
   // This listener is called upon completion of a syncable transaction, and
   // builds the list of sync-engine initiated changes that will be forwarded to
   // the SyncManager's Observers.
   virtual void HandleTransactionCompleteChangeEvent(
       ModelTypeSet models_with_changes) OVERRIDE;
   virtual ModelTypeSet HandleTransactionEndingChangeEvent(
       const syncable::ImmutableWriteTransactionInfo& write_transaction_info,
       syncable::BaseTransaction* trans) OVERRIDE;
@@ skipping 185 matching lines @@
   scoped_ptr<SyncEncryptionHandlerImpl> sync_encryption_handler_;
 
   base::WeakPtrFactory<SyncManagerImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncManagerImpl);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_SYNC_MANAGER_H_