Remove #pragma once from content

content/renderer/android/content_detector.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_ANDROID_CONTENT_DETECTOR_H_
 #define CONTENT_RENDERER_ANDROID_CONTENT_DETECTOR_H_
-#pragma once
 
 #include "googleurl/src/gurl.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebRange.h"
 
 namespace WebKit {
 class WebHitTestResult;
 }
 
 namespace content {
 
@@ skipping 45 matching lines @@
 
   WebKit::WebRange FindContentRange(const WebKit::WebHitTestResult& hit_test,
                                     std::string* content_text);
 
   DISALLOW_COPY_AND_ASSIGN(ContentDetector);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_ANDROID_CONTENT_DETECTOR_H_