Revert of [Sync] Enable UserEvents by default.

chrome/browser/sync/profile_sync_service_factory_unittest.cc

 // Copyright (c) 2015 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 "chrome/browser/sync/profile_sync_service_factory.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 60 matching lines @@
     datatypes.push_back(syncer::FAVICON_IMAGES);
     datatypes.push_back(syncer::HISTORY_DELETE_DIRECTIVES);
     datatypes.push_back(syncer::PASSWORDS);
     datatypes.push_back(syncer::PREFERENCES);
     datatypes.push_back(syncer::PRIORITY_PREFERENCES);
     datatypes.push_back(syncer::SESSIONS);
     datatypes.push_back(syncer::PROXY_TABS);
     datatypes.push_back(syncer::SUPERVISED_USER_SETTINGS);
     datatypes.push_back(syncer::SUPERVISED_USER_WHITELISTS);
     datatypes.push_back(syncer::TYPED_URLS);
-    datatypes.push_back(syncer::USER_EVENTS);
 
     return datatypes;
   }
 
   // Returns the number of default datatypes.
   size_t DefaultDatatypesCount() { return DefaultDatatypes().size(); }
 
   // Asserts that all the default datatypes are in |map|, except
   // for |exception_type|, which unless it is UNDEFINED, is asserted to
   // not be in |map|.
@@ skipping 59 matching lines @@
   syncer::ModelTypeSet disabled_types(syncer::AUTOFILL_PROFILE,
                                       syncer::BOOKMARKS);
   SetDisabledTypes(disabled_types);
   ProfileSyncService* pss = ProfileSyncServiceFactory::GetForProfile(profile());
   DataTypeController::StateMap controller_states;
   pss->GetDataTypeControllerStates(&controller_states);
   EXPECT_EQ(DefaultDatatypesCount() - disabled_types.Size(),
             controller_states.size());
   CheckDefaultDatatypesInMapExcept(&controller_states, disabled_types);
 }