[CSS Typed OM] Specify and check separators for repeated properties

third_party/WebKit/Source/build/scripts/templates/CSSPropertyMetadata.cpp.tmpl

 {% from 'macros.tmpl' import license %}
 {{license()}}
 
 #include "core/css/CSSPropertyMetadata.h"
 
 #include "platform/RuntimeEnabledFeatures.h"
 #include <bitset>
 
 namespace blink {
 {% for flag, function_name in switches %}
 
 bool CSSPropertyMetadata::{{function_name}}(CSSPropertyID property) {
-  switch(property) {
+  switch (property) {
     case CSSPropertyInvalid:
-      ASSERT_NOT_REACHED();
+      NOTREACHED();
       return false;
     {% for property_id, property in properties.items() if property[flag] %}
     case {{property_id}}:
     {% endfor %}
     {% if function_name == "isInheritedProperty" %}
     case CSSPropertyVariable:
     {% endif %}
       return true;
     default:
       return false;
   }
 }
 {% endfor %}
 
+char CSSPropertyMetadata::repetitionSeparator(CSSPropertyID property) {
+  switch (property) {
+  {% for property_id, property in properties.items() if property.separator %}
+  case {{property_id}}:
+    return '{{property.separator}}';
+  {% endfor %}
+  default:
+    return 0;
+  }
+}
+
+bool CSSPropertyMetadata::propertyIsRepeated(CSSPropertyID property) {
+  return repetitionSeparator(property) != 0;
+}
+
 bool CSSPropertyMetadata::isEnabledProperty(CSSPropertyID unresolvedProperty) {
   CSSPropertyID property = resolveCSSPropertyID(unresolvedProperty);
   static std::bitset<numCSSProperties>* enabledProperties = nullptr;
   if (!enabledProperties) {
     enabledProperties = new std::bitset<numCSSProperties>();
     enabledProperties->set(); // All bits sets to 1.
     {% for property_id, property in properties.items() if property.runtime_flag %}
     if (!RuntimeEnabledFeatures::{{property.runtime_flag|lower_first}}Enabled())
       enabledProperties->reset({{property_id}} - {{first_enum_value}});
     {% endfor %}
@@ skipping 16 matching lines @@
     size_t propertyCount,
     Vector<CSSPropertyID>& outVector) {
   for (unsigned i = 0; i < propertyCount; i++) {
     CSSPropertyID property = properties[i];
     if (isEnabledProperty(property))
       outVector.push_back(property);
   }
 }
 
 } // namespace blink