cc: Fix style for comments at the end of namespaces

cc/prioritized_texture.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/prioritized_texture.h"
 
 #include "cc/platform_color.h"
 #include "cc/prioritized_texture_manager.h"
@@ skipping 185 matching lines @@
         DCHECK(m_priorityAtLastPriorityUpdate == PriorityCalculator::lowestPriority());
 }
 
 void PrioritizedTexture::returnBackingTexture()
 {
     DCHECK(m_manager || !m_backing);
     if (m_manager)
         m_manager->returnBackingTexture(this);
 }
 
-} // namespace cc
+}  // namespace cc