Add more missing closing namespace comments.

third_party/WebKit/Source/platform/graphics/gpu/SharedContextRateLimiter.cpp

 // Copyright 2015 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.
 
 #include "platform/graphics/gpu/SharedContextRateLimiter.h"
 
 #include "platform/graphics/gpu/Extensions3DUtil.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebGraphicsContext3D.h"
 #include "public/platform/WebGraphicsContext3DProvider.h"
@@ skipping 62 matching lines @@
     if (context && !context->isContextLost()) {
         while (m_queries.size() > 0) {
             context->deleteQueryEXT(m_queries.first());
             m_queries.removeFirst();
         }
     } else {
         m_queries.clear();
     }
 }
 
-} // blink
-
+} // namespace blink