[svg2] Make 'x' and 'y' presentation attributes

Source/core/css/parser/CSSParserFastPaths.cpp

 // Copyright 2014 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 "config.h"
 #include "core/css/parser/CSSParserFastPaths.h"
 
 #include "core/StylePropertyShorthand.h"
 #include "core/css/CSSTransformValue.h"
 #include "core/css/CSSValuePool.h"
@@ skipping 32 matching lines @@
     case CSSPropertyMarginBottom:
     case CSSPropertyMarginLeft:
     case CSSPropertyMarginRight:
     case CSSPropertyMarginTop:
     case CSSPropertyRight:
     case CSSPropertyTop:
     case CSSPropertyWebkitMarginAfter:
     case CSSPropertyWebkitMarginBefore:
     case CSSPropertyWebkitMarginEnd:
     case CSSPropertyWebkitMarginStart:
+    case CSSPropertyX:
+    case CSSPropertyY:
         acceptsNegativeNumbers = true;
         return true;
     default:
         return false;
     }
 }
 
 template <typename CharacterType>
 static inline bool parseSimpleLength(const CharacterType* characters, unsigned length, CSSPrimitiveValue::UnitType& unit, double& number)
 {
@@ skipping 592 matching lines @@
     if (RefPtrWillBeRawPtr<CSSValue> color = parseColorValue(propertyID, string, parserMode))
         return color.release();
     if (RefPtrWillBeRawPtr<CSSValue> keyword = parseKeywordValue(propertyID, string))
         return keyword.release();
     if (RefPtrWillBeRawPtr<CSSValue> transform = parseSimpleTransform(propertyID, string))
         return transform.release();
     return nullptr;
 }
 
 } // namespace blink