Remove #pragma once from content

content/browser/web_contents/test_web_contents.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_BROWSER_WEB_CONTENTS_TEST_WEB_CONTENTS_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_TEST_WEB_CONTENTS_H_
-#pragma once
 
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/public/common/page_transition_types.h"
 #include "content/public/test/web_contents_tester.h"
 #include "webkit/glue/webpreferences.h"
 
 class SiteInstanceImpl;
 
 namespace content {
 
@@ skipping 95 matching lines @@
   bool expect_set_history_length_and_prune_;
   scoped_refptr<const SiteInstanceImpl>
     expect_set_history_length_and_prune_site_instance_;
   int expect_set_history_length_and_prune_history_length_;
   int32 expect_set_history_length_and_prune_min_page_id_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_TEST_WEB_CONTENTS_H_