[GCM] Move registration info persistence from extension state store to GCM store

google_apis/gcm/gcm.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
 
   'targets': [
@@ skipping 44 matching lines @@
         'engine/connection_handler_impl.cc',
         'engine/connection_handler_impl.h',
         'engine/gcm_store.cc',
         'engine/gcm_store.h',
         'engine/gcm_store_impl.cc',
         'engine/gcm_store_impl.h',
         'engine/heartbeat_manager.cc',
         'engine/heartbeat_manager.h',
         'engine/mcs_client.cc',
         'engine/mcs_client.h',
+        'engine/registration_info.cc',
+        'engine/registration_info.h',
         'engine/registration_request.cc',
         'engine/registration_request.h',
         'engine/unregistration_request.cc',
         'engine/unregistration_request.h',
         'gcm_client.cc',
         'gcm_client.h',
         'gcm_client_impl.cc',
         'gcm_client_impl.h',
         'protocol/android_checkin.proto',
         'protocol/checkin.proto',
@@ skipping 59 matching lines @@
         'engine/gcm_store_impl_unittest.cc',
         'engine/heartbeat_manager_unittest.cc',
         'engine/mcs_client_unittest.cc',
         'engine/registration_request_unittest.cc',
         'engine/unregistration_request_unittest.cc',
         'gcm_client_impl_unittest.cc'
       ]
     },
   ],
 }