cc: Fix style for comments at the end of namespaces

cc/software_renderer.cc

 // Copyright 2012 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 "config.h"
 
 #include "cc/software_renderer.h"
 
 #include "cc/debug_border_draw_quad.h"
 #include "cc/render_pass_draw_quad.h"
@@ skipping 343 matching lines @@
     m_outputDevice->unlock();
 }
 
 void SoftwareRenderer::setVisible(bool visible)
 {
     if (m_visible == visible)
         return;
     m_visible = visible;
 }
 
-}
+}  // namespace cc