[Sync] Convert sync to a static library.

components/sync/api/sync_change_processor.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_API_SYNC_CHANGE_PROCESSOR_H_
 #define COMPONENTS_SYNC_API_SYNC_CHANGE_PROCESSOR_H_
 
 #include <string>
 #include <vector>
 
 #include "components/sync/api/sync_data.h"
 #include "components/sync/api/sync_error.h"
 #include "components/sync/base/model_type.h"
-#include "components/sync/base/sync_export.h"
 
 namespace tracked_objects {
 class Location;
 }  // namespace tracked_objects
 
 namespace syncer {
 
 class SyncChange;
 
 typedef std::vector<SyncChange> SyncChangeList;
 
 // An interface for services that handle receiving SyncChanges.
-class SYNC_EXPORT SyncChangeProcessor {
+class SyncChangeProcessor {
  public:
   // Whether a context change should force a datatype refresh or not.
   enum ContextRefreshStatus { NO_REFRESH, REFRESH_NEEDED };
   typedef base::Callback<void(const SyncData&)> GetSyncDataCallback;
 
   SyncChangeProcessor();
   virtual ~SyncChangeProcessor();
 
   // Process a list of SyncChanges.
   // Returns: A default SyncError (IsSet() == false) if no errors were
@@ skipping 36 matching lines @@
   // unrelated to datatype implementations.
   virtual syncer::SyncError UpdateDataTypeContext(
       ModelType type,
       ContextRefreshStatus refresh_status,
       const std::string& context);
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_API_SYNC_CHANGE_PROCESSOR_H_