Add more missing closing namespace comments.

third_party/WebKit/Source/core/layout/svg/LayoutSVGText.cpp

 /*
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
  * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2008 Rob Buis <buis@kde.org>
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) Research In Motion Limited 2010-2012. All rights reserved.
  * Copyright (C) 2012 Google Inc.
  *
@@ skipping 48 matching lines @@
 const LayoutSVGText* findTextRoot(const LayoutObject* start)
 {
     ASSERT(start);
     for (; start; start = start->parent()) {
         if (start->isSVGText())
             return toLayoutSVGText(start);
     }
     return nullptr;
 }
 
-}
+} // namespace
 
 LayoutSVGText::LayoutSVGText(SVGTextElement* node)
     : LayoutSVGBlock(node)
     , m_needsReordering(false)
     , m_needsPositioningValuesUpdate(false)
     , m_needsTransformUpdate(true)
     , m_needsTextMetricsUpdate(false)
 {
 }
 
@@ skipping 449 matching lines @@
     if (reason == PaintInvalidationDelayedFull)
         paintInvalidationState.pushDelayedPaintInvalidationTarget(*this);
 
     ForceHorriblySlowRectMapping slowRectMapping(&paintInvalidationState);
     PaintInvalidationState childTreeWalkState(paintInvalidationState, *this, paintInvalidationState.paintInvalidationContainer());
     if (reason == PaintInvalidationSVGResourceChange)
         childTreeWalkState.setForceSubtreeInvalidationWithinContainer();
     invalidatePaintOfSubtreesIfNeeded(childTreeWalkState);
 }
 
-}
+} // namespace blink