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

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

 // 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.
 
 #include "core/css/parser/CSSPropertyParserHelpers.h"
 
 #include "core/css/CSSCalculationValue.h"
 #include "core/css/CSSColorValue.h"
 #include "core/css/CSSCrossfadeValue.h"
 #include "core/css/CSSGradientValue.h"
@@ skipping 498 matching lines @@
       return nullptr;
     return consumeIdent(range);
   }
   RGBA32 color = Color::transparent;
   if (!parseHexColor(range, color, acceptQuirkyColors) &&
       !parseColorFunction(range, color))
     return nullptr;
   return CSSColorValue::create(color);
 }
 
+CSSValue* consumeAutoOrColor(CSSParserTokenRange& range,
+                             CSSParserMode cssParserMode) {
+  if (range.peek().id() == CSSValueAuto)
+    return consumeIdent(range);
+  return consumeColor(range, cssParserMode);
+}
+
 static CSSValue* consumePositionComponent(CSSParserTokenRange& range,
                                           CSSParserMode cssParserMode,
                                           UnitlessQuirk unitless,
                                           bool& horizontalEdge,
                                           bool& verticalEdge) {
   if (range.peek().type() != IdentToken)
     return consumeLengthOrPercent(range, cssParserMode, ValueRangeAll,
                                   unitless);
 
   CSSValueID id = range.peek().id();
@@ skipping 701 matching lines @@
 
 // https://drafts.csswg.org/css-shapes-1/#typedef-shape-box
 CSSIdentifierValue* consumeShapeBox(CSSParserTokenRange& range) {
   return consumeIdent<CSSValueContentBox, CSSValuePaddingBox, CSSValueBorderBox,
                       CSSValueMarginBox>(range);
 }
 
 }  // namespace CSSPropertyParserHelpers
 
 }  // namespace blink