Remove #pragma once from content

content/renderer/renderer_accessibility_focus_only.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_RENDERER_RENDERER_ACCESSIBILITY_FOCUS_ONLY_H_
 #define CONTENT_RENDERER_RENDERER_ACCESSIBILITY_FOCUS_ONLY_H_
-#pragma once
 
 #include "content/renderer/renderer_accessibility.h"
 
 namespace content {
 
 // This is an accsessibility implementation that only handles whatever
 // node has focus, ignoring everything else. It's here because on Windows 8,
 // we need to use accessibility APIs to tell the operating system when a
 // touch should pop up the on-screen keyboard, but it's not worth the
 // performance overhead to enable full accessibility support.
@@ skipping 49 matching lines @@
                                 bool send_focus_event);
 
   int next_id_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererAccessibilityFocusOnly);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDERER_ACCESSIBILITY_FOCUS_ONLY_H_