Rename InvalidationVersionTracker to InvalidationStateTracker in preparation

sync/sync.gyp

 # Copyright (c) 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     # The core sync library.
@@ skipping 206 matching lines @@
             'notifier/cache_invalidation_packet_handler.cc',
             'notifier/cache_invalidation_packet_handler.h',
             'notifier/chrome_invalidation_client.cc',
             'notifier/chrome_invalidation_client.h',
             'notifier/chrome_system_resources.cc',
             'notifier/chrome_system_resources.h',
             'notifier/invalidation_notifier.h',
             'notifier/invalidation_notifier.cc',
             'notifier/invalidation_util.cc',
             'notifier/invalidation_util.h',
-            'notifier/invalidation_version_tracker.h',
+            'notifier/invalidation_state_tracker.h',
             'notifier/non_blocking_invalidation_notifier.h',
             'notifier/non_blocking_invalidation_notifier.cc',
             'notifier/p2p_notifier.h',
             'notifier/p2p_notifier.cc',
             'notifier/registration_manager.cc',
             'notifier/registration_manager.h',
             'notifier/state_writer.h',
           ],
         }],
       ],
@@ skipping 491 matching lines @@
         '../net/net.gyp:net_test_support',
         'sync',
         'sync_notifier',
       ],
       'sources': [
         'tools/sync_listen_notifications.cc',
       ],
     },
   ],
 }