Remove #pragma once from content

content/public/test/test_navigation_observer.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_PUBLIC_TEST_TEST_NAVIGATION_OBSERVER_H_
 #define CONTENT_PUBLIC_TEST_TEST_NAVIGATION_OBSERVER_H_
-#pragma once
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 namespace content {
 
 class JsInjectionReadyObserver;
@@ skipping 70 matching lines @@
   // |rvho_send_js_| will hold a RenderViewHostObserver subclass to allow
   // JavaScript injection at the appropriate time.
   scoped_ptr<RVHOSendJS> rvho_send_js_;
 
   DISALLOW_COPY_AND_ASSIGN(TestNavigationObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_TEST_NAVIGATION_OBSERVER_H_