Remove #pragma once from content

content/renderer/render_view_selection.h

 // Copyright (c) 2011 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_RENDERER_RENDER_VIEW_SELECTION_H_
 #define CONTENT_RENDERER_RENDER_VIEW_SELECTION_H_
-#pragma once
 
 #include <string>
 #include "ui/base/range/range.h"
 #include "ui/gfx/point.h"
 
 // Please do not use this class. This is to be deleted.
 // A data class to represent selection on a webpage.
 // TODO(varunjain): delete this class.
 class RenderViewSelection {
  public:
   RenderViewSelection();
   RenderViewSelection(const std::string& text,
                       const ui::Range range,
                       const gfx::Point start,
                       const gfx::Point end);
 
   virtual ~RenderViewSelection();
 
   bool Equals(const RenderViewSelection& that) const;
 
  private:
   std::string text_;
   ui::Range range_;
   gfx::Point start_;
   gfx::Point end_;
 };
 
 #endif  // CONTENT_RENDERER_RENDER_VIEW_SELECTION_H_