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

sync/internal_api/public/base/invalidation.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_INTERNAL_API_PUBLIC_BASE_INVALIDATION_H_
 #define SYNC_INTERNAL_API_PUBLIC_BASE_INVALIDATION_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
+#include "sync/base/sync_export.h"
 
 namespace base {
 class DictionaryValue;
 }  // namespace
 
 namespace syncer {
 
 // Opaque class that represents a local ack handle. We don't reuse the
 // invalidation ack handles to avoid unnecessary dependencies.
-class AckHandle {
+class SYNC_EXPORT AckHandle {
  public:
   static AckHandle CreateUnique();
   static AckHandle InvalidAckHandle();
 
   bool Equals(const AckHandle& other) const;
 
   scoped_ptr<base::DictionaryValue> ToValue() const;
   bool ResetFromValue(const base::DictionaryValue& value);
 
   bool IsValid() const;
@@ skipping 19 matching lines @@
   scoped_ptr<base::DictionaryValue> ToValue() const;
   bool ResetFromValue(const base::DictionaryValue& value);
 
   std::string payload;
   AckHandle ack_handle;
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_BASE_INVALIDATION_H_