[sync] Componentize sync: Part 6: Add more SYNC_EXPORTs to files in src/sync/

sync/notifier/ack_tracker.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_NOTIFIER_ACK_TRACKER_H_
 #define SYNC_NOTIFIER_ACK_TRACKER_H_
 
 #include <map>
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "base/time.h"
 #include "base/timer.h"
 #include "net/base/backoff_entry.h"
+#include "sync/base/sync_export.h"
 #include "sync/notifier/invalidation_util.h"
 
 namespace syncer {
 
 // A simple class that tracks sets of object IDs that have not yet been
 // acknowledged. Internally, it manages timeouts for the tracked object IDs and
 // periodically triggers a callback for each timeout period. The timeout is a
 // simple exponentially increasing time that starts at 60 seconds and is capped
 // at 600 seconds.
-class AckTracker {
+class SYNC_EXPORT_PRIVATE AckTracker {
  public:
-  class Delegate {
+  class SYNC_EXPORT_PRIVATE Delegate {
    public:
     virtual ~Delegate();
 
     // |ids| contains all object IDs that have timed out in this time interval.
     virtual void OnTimeout(const ObjectIdSet& ids) = 0;
   };
 
   typedef base::Callback<base::TimeTicks()> NowCallback;
   typedef base::Callback<scoped_ptr<net::BackoffEntry>(
       const net::BackoffEntry::Policy* const)> CreateBackoffEntryCallback;
@@ skipping 59 matching lines @@
   std::multimap<base::TimeTicks, Entry*> queue_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(AckTracker);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_NOTIFIER_ACK_TRACKER_H_