Cleanup: Remove unneeded includes of pref_names.h

chrome/browser/sync/profile_sync_service_session_unittest.cc

 // Copyright (c) 2010 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 <map>
 #include <string>
 
 #include "base/message_loop.h"
 #include "base/scoped_ptr.h"
 #include "base/scoped_temp_dir.h"
@@ skipping 12 matching lines @@
 #include "chrome/browser/sync/protocol/session_specifics.pb.h"
 #include "chrome/browser/sync/protocol/sync.pb.h"
 #include "chrome/browser/sync/syncable/directory_manager.h"
 #include "chrome/browser/sync/syncable/model_type.h"
 #include "chrome/browser/sync/syncable/syncable.h"
 #include "chrome/browser/sync/test_profile_sync_service.h"
 #include "chrome/common/net/gaia/gaia_constants.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
 #include "chrome/common/notification_service.h"
-#include "chrome/common/pref_names.h"
 #include "chrome/test/browser_with_test_window_test.h"
 #include "chrome/test/file_test_utils.h"
 #include "chrome/test/profile_mock.h"
 #include "chrome/test/testing_profile.h"
 #include "chrome/test/sync/engine/test_id_factory.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using browser_sync::SessionChangeProcessor;
 using browser_sync::SessionDataTypeController;
@@ skipping 374 matching lines @@
   ASSERT_FALSE(model_associator_->tab_pool_.full());
   for (size_t i = 0; i < num_ids; ++i) {
     model_associator_->tab_pool_.FreeTabNode(node_ids[i]);
   }
   ASSERT_EQ(num_ids, model_associator_->tab_pool_.capacity());
   ASSERT_FALSE(model_associator_->tab_pool_.empty());
   ASSERT_TRUE(model_associator_->tab_pool_.full());
 }
 
 }  // namespace browser_sync
-