[sync] Componentize sync: Part 2: Add SYNC_EXPORTs to files in src/sync/

sync/internal_api/public/sessions/model_neutral_state.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// 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_SESSIONS_MODEL_NEUTRAL_STATE_H
 #define SYNC_SESSIONS_MODEL_NEUTRAL_STATE_H
 
 #include "base/basictypes.h"
+#include "sync/base/sync_export.h"
 #include "sync/internal_api/public/util/syncer_error.h"
 #include "sync/protocol/sync.pb.h"
 #include "sync/protocol/sync_protocol_error.h"
 
 namespace syncer {
 namespace sessions {
 
 // Grouping of all state that applies to all model types.  Note that some
 // components of the global grouping can internally implement finer grained
 // scope control, but the top level entity is still a singleton with respect to
 // model types.
-struct ModelNeutralState {
+struct SYNC_EXPORT ModelNeutralState {
   ModelNeutralState();
   ~ModelNeutralState();
 
   // We GetUpdates for some combination of types at once.
   // requested_update_types stores the set of types which were requested.
   ModelTypeSet updates_request_types;
 
   sync_pb::ClientToServerResponse updates_response;
 
   int num_successful_commits;
@@ skipping 40 matching lines @@
   // really is nothing more to download.
   int64 num_server_changes_remaining;
 };
 
 bool HasSyncerError(const ModelNeutralState& state);
 
 }  // namespace sessions
 }  // namespace syncer
 
 #endif  // SYNC_SESSIONS_MODEL_NEUTRAL_STATE_H_