Remove #pragma once from chrome/browser/sync

chrome/browser/sync/glue/model_associator_mock.h

 // 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.
 
 #ifndef CHROME_BROWSER_SYNC_GLUE_MODEL_ASSOCIATOR_MOCK_H__
 #define CHROME_BROWSER_SYNC_GLUE_MODEL_ASSOCIATOR_MOCK_H__
-#pragma once
 
 #include "base/location.h"
 #include "chrome/browser/sync/glue/model_associator.h"
 #include "sync/api/sync_error.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace browser_sync {
 
 ACTION_P(SetSyncError, type) {
   arg0->Reset(FROM_HERE, "test", type);
 }
 
 class ModelAssociatorMock : public AssociatorInterface {
  public:
   ModelAssociatorMock();
   virtual ~ModelAssociatorMock();
 
   MOCK_METHOD0(AssociateModels, syncer::SyncError());
   MOCK_METHOD0(DisassociateModels, syncer::SyncError());
   MOCK_METHOD1(SyncModelHasUserCreatedNodes, bool(bool* has_nodes));
   MOCK_METHOD0(AbortAssociation, void());
   MOCK_METHOD0(CryptoReadyIfNecessary, bool());
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_MODEL_ASSOCIATOR_MOCK_H__