Finish decoupling sync and invalidations

components/invalidation/ack_handle.h

 // Copyright 2013 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_ACK_HANDLE_H
-#define SYNC_INTERNAL_API_PUBLIC_BASE_ACK_HANDLE_H
+#ifndef COMPONENTS_INVALIDATION_ACK_HANDLE_H_
+#define COMPONENTS_INVALIDATION_ACK_HANDLE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
-#include "sync/base/sync_export.h"
+#include "components/invalidation/invalidation_export.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace syncer {
 
 // Opaque class that represents a local ack handle. We don't reuse the
 // invalidation ack handles to avoid unnecessary dependencies.
-class SYNC_EXPORT AckHandle {
+class INVALIDATION_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;
 
   ~AckHandle();
 
  private:
   // Explicitly copyable and assignable for STL containers.
   AckHandle(const std::string& state, base::Time timestamp);
 
   std::string state_;
   base::Time timestamp_;
 };
 
 }  // namespace syncer
 
-#endif  // SYNC_INTERNAL_API_PUBLIC_BASE_ACK_HANDLE_H
+#endif  // COMPONENTS_INVALIDATION_ACK_HANDLE_H_