Implement parseShorthand API for shorthand properties, "overflow", "font" and "font-variant"

third_party/WebKit/Source/core/css/properties/CSSShorthandPropertyAPIWebkitMarginCollapse.cpp

 // Copyright 2017 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/properties/CSSShorthandPropertyAPIWebkitMarginCollapse.h"
 
 #include "core/css/CSSIdentifierValue.h"
 #include "core/css/parser/CSSParserContext.h"
 #include "core/css/parser/CSSParserFastPaths.h"
 #include "core/css/parser/CSSPropertyParserHelpers.h"
 
 namespace blink {
 
 bool CSSShorthandPropertyAPIWebkitMarginCollapse::parseShorthand(
     bool important,
     CSSParserTokenRange& range,
     const CSSParserContext& context,
     const CSSParserLocalContext&,
     HeapVector<CSSProperty, 256>& properties) {
   CSSValueID id = range.ConsumeIncludingWhitespace().Id();
   if (!CSSParserFastPaths::IsValidKeywordPropertyAndValue(
           CSSPropertyWebkitMarginBeforeCollapse, id, context.Mode()))
     return false;
 
   CSSValue* before_collapse = CSSIdentifierValue::Create(id);
   CSSPropertyParserHelpers::AddProperty(
       CSSPropertyWebkitMarginBeforeCollapse, CSSPropertyWebkitMarginCollapse,
-      *before_collapse, important, false /* implicit */, properties);
+      *before_collapse, important,
+      CSSPropertyParserHelpers::IsImplicitProperty::kNotImplicit, properties);
 
   if (range.AtEnd()) {
     CSSPropertyParserHelpers::AddProperty(
         CSSPropertyWebkitMarginAfterCollapse, CSSPropertyWebkitMarginCollapse,
-        *before_collapse, important, false /* implicit */, properties);
+        *before_collapse, important,
+        CSSPropertyParserHelpers::IsImplicitProperty::kNotImplicit, properties);
     return true;
   }
 
   id = range.ConsumeIncludingWhitespace().Id();
   if (!CSSParserFastPaths::IsValidKeywordPropertyAndValue(
           CSSPropertyWebkitMarginAfterCollapse, id, context.Mode()))
     return false;
   CSSPropertyParserHelpers::AddProperty(
       CSSPropertyWebkitMarginAfterCollapse, CSSPropertyWebkitMarginCollapse,
-      *CSSIdentifierValue::Create(id), important, false /* implicit */,
-      properties);
+      *CSSIdentifierValue::Create(id), important,
+      CSSPropertyParserHelpers::IsImplicitProperty::kNotImplicit, properties);
   return true;
 }
 
 }  // namespace blink