Remove #pragma once from chrome/browser/{printing,safe_browsing,prefs,bookmarks,autocomplete}

chrome/browser/autocomplete/autocomplete_controller_delegate.h

 // Copyright (c) 2010 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 CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_CONTROLLER_DELEGATE_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_CONTROLLER_DELEGATE_H_
-#pragma once
 
 class AutocompleteControllerDelegate {
  public:
   // Invoked when the result set of the AutocompleteController changes. If
   // |default_match_changed| is true, the default match of the result set has
   // changed.
   virtual void OnResultChanged(bool default_match_changed) = 0;
 
  protected:
   virtual ~AutocompleteControllerDelegate() {}
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_CONTROLLER_DELEGATE_H_