Introduce the nested namespace ::blink::cssvalue, start with CSSColorValue.

third_party/WebKit/Source/core/html/HTMLFontElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  * Copyright (C) 2003, 2006, 2008, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 17 matching lines @@
 #include "core/css/CSSValueList.h"
 #include "core/css/CSSValuePool.h"
 #include "core/css/StylePropertySet.h"
 #include "core/css/parser/CSSParser.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "wtf/text/StringBuilder.h"
 #include "wtf/text/StringToNumber.h"
 
 namespace blink {
 
+using namespace cssvalue;
 using namespace HTMLNames;
 
 inline HTMLFontElement::HTMLFontElement(Document& document)
     : HTMLElement(fontTag, document) {}
 
 DEFINE_NODE_FACTORY(HTMLFontElement)
 
 // http://www.whatwg.org/specs/web-apps/current-work/multipage/rendering.html#fonts-and-colors
 template <typename CharacterType>
 static bool parseFontSize(const CharacterType* characters,
@@ skipping 148 matching lines @@
     addHTMLColorToStyle(style, CSSPropertyColor, value);
   } else if (name == faceAttr && !value.isEmpty()) {
     if (const CSSValueList* fontFaceValue = createFontFaceValueWithPool(value))
       style->setProperty(CSSProperty(CSSPropertyFontFamily, *fontFaceValue));
   } else {
     HTMLElement::collectStyleForPresentationAttribute(name, value, style);
   }
 }
 
 }  // namespace blink