Add more missing closing namespace comments.

third_party/WebKit/Source/core/css/CSSTimingFunctionValue.h

 /*
  * Copyright (C) 2007, 2008, 2012 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 80 matching lines @@
         , m_stepAtPosition(stepAtPosition)
     {
     }
 
     int m_steps;
     StepsTimingFunction::StepAtPosition m_stepAtPosition;
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSStepsTimingFunctionValue, isStepsTimingFunctionValue());
 
-} // namespace
+} // namespace blink
 
 #endif