Remove most remaining sync/notifier dependencies

sync/sessions/nudge_tracker.cc

 // Copyright (c) 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.
 
 #include "sync/sessions/nudge_tracker.h"
 
 #include "base/basictypes.h"
-#include "sync/internal_api/public/base/invalidation.h"
-#include "sync/notifier/invalidation_util.h"
-#include "sync/notifier/object_id_invalidation_map.h"
 #include "sync/protocol/sync.pb.h"
 
 namespace syncer {
 namespace sessions {
 
 size_t NudgeTracker::kDefaultMaxPayloadsPerType = 10;
 
 NudgeTracker::NudgeTracker()
     : type_tracker_deleter_(&type_trackers_),
       invalidations_enabled_(false),
@@ skipping 280 matching lines @@
     it->second->UpdatePayloadBufferSize(size);
   }
 }
 
 void NudgeTracker::SetNextRetryTime(base::TimeTicks retry_time) {
   next_retry_time_ = retry_time;
 }
 
 }  // namespace sessions
 }  // namespace syncer