Remove #pragma once from content

content/browser/web_contents/web_contents_view_win.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_WEB_CONTENTS_VIEW_WIN_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_WIN_H_
-#pragma once
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/timer.h"
 #include "base/win/win_util.h"
 #include "content/common/content_export.h"
 #include "content/port/browser/render_view_host_delegate_view.h"
 #include "content/public/browser/web_contents_view.h"
 #include "ui/base/win/window_impl.h"
 
@@ skipping 128 matching lines @@
 
   // Used to close the tab after the stack has unwound.
   base::OneShotTimer<WebContentsViewWin> close_tab_timer_;
 
   scoped_ptr<ui::HWNDMessageFilter> hwnd_message_filter_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsViewWin);
 };
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_WIN_H_