Ensure original parser context is used when parsing resolved var() references

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

Index: third_party/WebKit/Source/core/css/parser/CSSVariableParser.h
diff --git a/third_party/WebKit/Source/core/css/parser/CSSVariableParser.h b/third_party/WebKit/Source/core/css/parser/CSSVariableParser.h
index 807de1660d552070479ca83cb61f9928a03560ed..75a841966a16b24d90c40b82aacb8b682af85e4f 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSVariableParser.h
+++ b/third_party/WebKit/Source/core/css/parser/CSSVariableParser.h
@@ -14,6 +14,7 @@
 namespace blink {
 
 class CSSCustomPropertyDeclaration;
+class CSSParserContext;
 class CSSVariableReferenceValue;
 
 class CORE_EXPORT CSSVariableParser {
@@ -26,6 +27,7 @@ class CORE_EXPORT CSSVariableParser {
       bool is_animation_tainted);
   static CSSVariableReferenceValue* ParseRegisteredPropertyValue(
       CSSParserTokenRange,
+      const CSSParserContext&,
       bool require_var_reference,
       bool is_animation_tainted);