Set "auto" as default for rx and ry

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

Index: third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
diff --git a/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp b/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
index 30ba7ff08afdc5fba6435c593e048e388627720a..8d0101550322b00fc280f381d261b521052201bc 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
+++ b/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
@@ -1939,6 +1939,13 @@ static CSSPrimitiveValue* consumeBaselineShift(CSSParserTokenRange& range)
     return consumeLengthOrPercent(range, SVGAttributeMode, ValueRangeAll);
 }
 
+static CSSPrimitiveValue* consumeRxOrRy(CSSParserTokenRange& range)
+{
+    if (range.peek().id() == CSSValueAuto)
+        return consumeIdent(range);
+    return consumeLengthOrPercent(range, SVGAttributeMode, ValueRangeAll, UnitlessQuirk::Forbid);
+}
+
 static CSSValue* createCSSImageValueWithReferrer(const AtomicString& rawValue, const CSSParserContext& context)
 {
     CSSValue* imageValue = CSSImageValue::create(rawValue, context.completeURL(rawValue));
@@ -3849,9 +3856,10 @@ CSSValue* CSSPropertyParser::parseSingleValue(CSSPropertyID unresolvedProperty,
     case CSSPropertyX:
     case CSSPropertyY:
     case CSSPropertyR:
+        return consumeLengthOrPercent(m_range, SVGAttributeMode, ValueRangeAll, UnitlessQuirk::Forbid);
     case CSSPropertyRx:
     case CSSPropertyRy:
-        return consumeLengthOrPercent(m_range, SVGAttributeMode, ValueRangeAll, UnitlessQuirk::Forbid);
+        return consumeRxOrRy(m_range);
     case CSSPropertyCursor:
         return consumeCursor(m_range, m_context, inQuirksMode());
     case CSSPropertyContain: