Add more missing closing namespace comments.

third_party/WebKit/Source/core/fetch/StyleSheetResourceClient.h

 /*
  Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
  Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
  Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  Copyright (C) 2011 Google Inc. All rights reserved.
 
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Library General Public
  License as published by the Free Software Foundation; either
  version 2 of the License, or (at your option) any later version.
@@ skipping 24 matching lines @@
 
 class StyleSheetResourceClient : public ResourceClient {
 public:
     ~StyleSheetResourceClient() override {}
     static ResourceClientType expectedType() { return StyleSheetType; }
     ResourceClientType resourceClientType() const final { return expectedType(); }
     virtual void setCSSStyleSheet(const String& /* href */, const KURL& /* baseURL */, const String& /* charset */, const CSSStyleSheetResource*) {}
     virtual void setXSLStyleSheet(const String& /* href */, const KURL& /* baseURL */, const String& /* sheet */) {}
 };
 
-}
+} // namespace blink
 
 #endif // StyleSheetResourceClient_h