Cleanup namespace usage in public/web/Web[N-Z]*.h.

public/web/WebTextCheckingCompletion.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 25 matching lines @@
 namespace blink {
 
 struct WebTextCheckingResult;
 template <typename T> class WebVector;
 
 // Gets called back when WebViewClient finished an asynchronous spell checking.
 class WebTextCheckingCompletion {
 public:
     virtual void didFinishCheckingText(const WebVector<WebTextCheckingResult>&) = 0;
     virtual void didCancelCheckingText() { };
+
 protected:
     ~WebTextCheckingCompletion() { }
 };
 
 } // namespace blink
 
 #endif