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

public/web/WebSpeechGrammar.h

 /*
  * Copyright (C) 2012 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 copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 13 matching lines @@
  */
 
 #ifndef WebSpeechGrammar_h
 #define WebSpeechGrammar_h
 
 #include "../platform/WebCommon.h"
 #include "../platform/WebPrivatePtr.h"
 #include "../platform/WebURL.h"
 
 namespace blink {
+
 class SpeechGrammar;
-}
-
-namespace blink {
 
 class WebSpeechGrammar {
 public:
     WebSpeechGrammar() { }
     WebSpeechGrammar(const WebSpeechGrammar& grammar) { assign(grammar); }
     ~WebSpeechGrammar() { reset(); }
 
     BLINK_EXPORT WebURL src() const;
     BLINK_EXPORT float weight() const;
 
     BLINK_EXPORT void reset();
     BLINK_EXPORT void assign(const WebSpeechGrammar&);
 
 #if BLINK_IMPLEMENTATION
-    explicit WebSpeechGrammar(blink::SpeechGrammar*);
-    WebSpeechGrammar& operator=(blink::SpeechGrammar*);
+    explicit WebSpeechGrammar(SpeechGrammar*);
+    WebSpeechGrammar& operator=(SpeechGrammar*);
 #endif
 
 private:
-    WebPrivatePtr<blink::SpeechGrammar> m_private;
+    WebPrivatePtr<SpeechGrammar> m_private;
 };
 
 } // namespace blink
 
 #endif // WebSpeechGrammar_h