Remove #pragma once from content

content/renderer/mouse_lock_dispatcher.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_MOUSE_LOCK_DISPATCHER_H_
 #define CONTENT_RENDERER_MOUSE_LOCK_DISPATCHER_H_
-#pragma once
 
 #include "base/basictypes.h"
 #include "content/common/content_export.h"
 
 namespace WebKit {
 class WebMouseEvent;
 }  // namespace WebKit
 
 class CONTENT_EXPORT MouseLockDispatcher {
  public:
@@ skipping 57 matching lines @@
 
   // |target_| is the pending or current owner of mouse lock. We retain a non
   // owning reference here that must be cleared by |OnLockTargetDestroyed|
   // when it is destroyed.
   LockTarget* target_;
 
   DISALLOW_COPY_AND_ASSIGN(MouseLockDispatcher);
 };
 
 #endif  // CONTENT_RENDERER_MOUSE_LOCK_DISPATCHER_H_