Remove #pragma once from content

content/test/test_content_browser_client.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 CONTENT_TEST_TEST_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_TEST_TEST_CONTENT_BROWSER_CLIENT_H_
-#pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/scoped_temp_dir.h"
 #include "content/public/browser/content_browser_client.h"
 
 namespace content {
 
@@ skipping 11 matching lines @@
  private:
   // Temporary directory for GetDefaultDownloadDirectory.
   ScopedTempDir download_dir_;
 
   DISALLOW_COPY_AND_ASSIGN(TestContentBrowserClient);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_TEST_CONTENT_BROWSER_CLIENT_H_