Remove #pragma once from content

content/public/browser/android/content_view.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_PUBLIC_BROWSER_CONTENT_VIEW_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_VIEW_H_
-#pragma once
 
 #include <jni.h>
 
 namespace content {
 
 class WebContents;
 
 // Native side of the ContentView.java, the primary FrameLayout of
 // Chromium on Android.  This is a public interface used by native
 // code outside of the content module.
@@ skipping 16 matching lines @@
                              WebContents* web_contents);
   static ContentView* GetNativeContentView(JNIEnv* env, jobject obj);
 
  protected:
   virtual ~ContentView() {};
 };
 
 };  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_VIEW_H_