Add CSS support for text-decoration-skip

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

 // Copyright 2015 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/CSSPropertyParser.h"
 
 #include "core/StylePropertyShorthand.h"
 #include "core/css/CSSBasicShapeValues.h"
 #include "core/css/CSSBorderImage.h"
 #include "core/css/CSSContentDistributionValue.h"
@@ skipping 1505 matching lines @@
     if (list->hasValue(*ident))
       return nullptr;
     list->append(*ident);
   }
 
   if (!list->length())
     return nullptr;
   return list;
 }
 
+static CSSValue* consumeTextDecorationSkip(CSSParserTokenRange& range) {
+  CSSValueList* list = CSSValueList::createSpaceSeparated();
+  while (true) {
+    CSSIdentifierValue* ident =
+        consumeIdent<CSSValueObjects, CSSValueInk>(range);
+    if (!ident)
+      break;
+    if (list->hasValue(*ident))
+      return nullptr;
+    list->append(*ident);
+  }
+
+  if (!list->length())
+    return nullptr;
+
+  return list;
+}
+
 // none | strict | content | [ layout || style || paint || size ]
 static CSSValue* consumeContain(CSSParserTokenRange& range) {
   CSSValueID id = range.peek().id();
   if (id == CSSValueNone)
     return consumeIdent(range);
 
   CSSValueList* list = CSSValueList::createSpaceSeparated();
   if (id == CSSValueStrict || id == CSSValueContent) {
     list->append(*consumeIdent(range));
     return list;
@@ skipping 2074 matching lines @@
                            property == CSSPropertyBoxShadow);
     case CSSPropertyFilter:
     case CSSPropertyBackdropFilter:
       return consumeFilter(m_range, m_context);
     case CSSPropertyTextDecoration:
       ASSERT(!RuntimeEnabledFeatures::css3TextDecorationsEnabled());
     // fallthrough
     case CSSPropertyWebkitTextDecorationsInEffect:
     case CSSPropertyTextDecorationLine:
       return consumeTextDecorationLine(m_range);
+    case CSSPropertyTextDecorationSkip:
+      DCHECK(RuntimeEnabledFeatures::css3TextDecorationsEnabled());
+      return consumeTextDecorationSkip(m_range);
     case CSSPropertyOffsetAnchor:
       return consumeOffsetAnchor(m_range, m_context.mode());
     case CSSPropertyOffsetPosition:
       return consumeOffsetPosition(m_range, m_context.mode(),
                                    m_context.useCounter());
     case CSSPropertyD:
       return consumePathOrNone(m_range);
     case CSSPropertyOffsetPath:
       return consumeOffsetPath(
           m_range, m_context.useCounter(),
@@ skipping 1670 matching lines @@
     case CSSPropertyGridTemplate:
       return consumeGridTemplateShorthand(CSSPropertyGridTemplate, important);
     case CSSPropertyGrid:
       return consumeGridShorthand(important);
     default:
       return false;
   }
 }
 
 }  // namespace blink