[Sync] Move sessions files from sync_driver to sync_sessions.

components/components_tests.gyp

 # Copyright 2014 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': {
     # This turns on e.g. the filename-based detection of which
     # platforms to include source files on (e.g. files ending in
     # _mac.h or _mac.cc are only compiled on MacOSX).
     'chromium_code': 1,
@@ skipping 677 matching lines @@
       'sync_driver/local_device_info_provider_unittest.cc',
       'sync_driver/model_association_manager_unittest.cc',
       'sync_driver/non_blocking_data_type_controller_unittest.cc',
       'sync_driver/non_frontend_data_type_controller_unittest.cc',
       'sync_driver/non_ui_data_type_controller_unittest.cc',
       'sync_driver/shared_change_processor_unittest.cc',
       'sync_driver/sync_prefs_unittest.cc',
       'sync_driver/sync_stopped_reporter_unittest.cc',
       'sync_driver/sync_util_unittest.cc',
       'sync_driver/system_encryptor_unittest.cc',
-      'sync_driver/tab_node_pool_unittest.cc',
       'sync_driver/ui_data_type_controller_unittest.cc',
     ],
     'sync_sessions_unittest_sources': [
       'sync_sessions/favicon_cache_unittest.cc',
       'sync_sessions/revisit/bookmarks_page_revisit_observer_unittest.cc',
       'sync_sessions/revisit/current_tab_matcher_unittest.cc',
       'sync_sessions/revisit/offset_tab_matcher_unittest.cc',
       'sync_sessions/revisit/page_revisit_broadcaster_unittest.cc',
       'sync_sessions/revisit/sessions_page_revisit_observer_unittest.cc',
       'sync_sessions/revisit/typed_url_page_revisit_task_unittest.cc',
       'sync_sessions/session_data_type_controller_unittest.cc',
       'sync_sessions/synced_session_tracker_unittest.cc',
+      'sync_sessions/tab_node_pool_unittest.cc',
     ],
     'syncable_prefs_unittest_sources': [
       'syncable_prefs/pref_model_associator_unittest.cc',
       'syncable_prefs/pref_service_syncable_unittest.cc',
     ],
     'tracing_unittest_sources': [
       'tracing/graphics_memory_dump_provider_android_unittest.cc',
       'tracing/trace_config_file_unittest.cc',
     ],
     'translate_unittest_sources': [
@@ skipping 1101 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }