[css-ui] Add support for caret-color property

third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.h

 // Copyright 2016 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.
 
 #ifndef CSSPropertyParserHelpers_h
 #define CSSPropertyParserHelpers_h
 
 #include "core/css/CSSCustomIdentValue.h"
 #include "core/css/CSSIdentifierValue.h"
 #include "core/css/CSSPrimitiveValue.h"
@@ skipping 51 matching lines @@
 CSSIdentifierValue* consumeIdent(CSSParserTokenRange&);
 
 CSSCustomIdentValue* consumeCustomIdent(CSSParserTokenRange&);
 CSSStringValue* consumeString(CSSParserTokenRange&);
 StringView consumeUrlAsStringView(CSSParserTokenRange&);
 CSSURIValue* consumeUrl(CSSParserTokenRange&);
 
 CSSValue* consumeColor(CSSParserTokenRange&,
                        CSSParserMode,
                        bool acceptQuirkyColors = false);
+CSSValue* consumeAutoOrColor(CSSParserTokenRange&, CSSParserMode);

[Timothy Loh, 2016/11/22 02:17:35]

This probably isn't obvious but this sort of function should just be
consumeCaretColor in CSSPropertyParser.cpp for now. This file is for stuff which
is going to be re-used for multiple properties, and in particular for types from
css-values and other main specs.

[Manuel Rego, 2016/11/22 09:36:01]

I added it here as is supposed that any new/future color property
that is added on CSS will follow the same pattern than caret-color:
  auto | <color>

Anyway I can manage this specifically for caret-color at this moment
if you think it's better.

 
 CSSValuePair* consumePosition(CSSParserTokenRange&,
                               CSSParserMode,
                               UnitlessQuirk);
 bool consumePosition(CSSParserTokenRange&,
                      CSSParserMode,
                      UnitlessQuirk,
                      CSSValue*& resultX,
                      CSSValue*& resultY);
 bool consumeOneOrTwoValuedPosition(CSSParserTokenRange&,
@@ skipping 30 matching lines @@
       !identMatches<names...>(range.peek().id()))
     return nullptr;
   return CSSIdentifierValue::create(range.consumeIncludingWhitespace().id());
 }
 
 }  // namespace CSSPropertyParserHelpers
 
 }  // namespace blink
 
 #endif  // CSSPropertyParserHelpers_h