[SVG2] Allow leading and trailing whitespace in svg attributes

Source/core/svg/SVGAnimationElement.cpp

 /*
  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Cameron McCormack <cam@mcc.id.au>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 92 matching lines @@
             return;
         }
 
         float posC = 0;
         if (!parseNumber(ptr, end, posC)) {
             result.clear();
             return;
         }
 
         float posD = 0;
-        if (!parseNumber(ptr, end, posD, false)) {
+        if (!parseNumber(ptr, end, posD, STRICT)) {
             result.clear();
             return;
         }
 
         skipOptionalSVGSpaces(ptr, end);
 
         if (ptr < end && *ptr == ';') {
             delimParsed = true;
             ptr++;
         }
@@ skipping 585 matching lines @@
     SVGSMILElement::setAttributeName(attributeName);
     checkInvalidCSSAttributeType(targetElement());
 }
 
 void SVGAnimationElement::checkInvalidCSSAttributeType(SVGElement* target)
 {
     m_hasInvalidCSSAttributeType = target && hasValidAttributeName() && attributeType() == AttributeTypeCSS && !isTargetAttributeCSSProperty(target, attributeName());
 }
 
 }