[SVG2] Allow leading and trailing whitespace in svg attributes

Source/core/svg/SVGParserUtilities.h

Index: Source/core/svg/SVGParserUtilities.h
diff --git a/Source/core/svg/SVGParserUtilities.h b/Source/core/svg/SVGParserUtilities.h
index 6e2e423b1c24853051d320577abd82dd32a039fc..8702e79a40fef900d02f9a5b304bf44b27aec1e2 100644
--- a/Source/core/svg/SVGParserUtilities.h
+++ b/Source/core/svg/SVGParserUtilities.h
@@ -22,6 +22,7 @@
 #ifndef SVGParserUtilities_h
 #define SVGParserUtilities_h
 
+#include "core/html/parser/HTMLParserIdioms.h"
 #include "core/svg/SVGTransform.h"
 #include "platform/text/ParserUtilities.h"
 #include "wtf/HashSet.h"
@@ -35,11 +36,19 @@ class FloatPoint;
 class FloatRect;
 class SVGPointList;
 
+enum WhitespaceMode {
+    DisallowWhitespace = 0,
+    AllowLeadingWhitespace = 0x1,
+    AllowTrailingWhitespace = 0x2,
+    AllowLeadingAndTrailingWhitespace = AllowLeadingWhitespace | AllowTrailingWhitespace
+};
+
 template <typename CharType>
 bool parseSVGNumber(CharType* ptr, size_t length, double& number);
-bool parseNumber(const LChar*& ptr, const LChar* end, float& number, bool skip = true);
-bool parseNumber(const UChar*& ptr, const UChar* end, float& number, bool skip = true);
+bool parseNumber(const LChar*& ptr, const LChar* end, float& number, WhitespaceMode = AllowLeadingAndTrailingWhitespace);
+bool parseNumber(const UChar*& ptr, const UChar* end, float& number, WhitespaceMode = AllowLeadingAndTrailingWhitespace);
 bool parseNumberOptionalNumber(const String& s, float& h, float& v);
+bool parseNumberOrPercentage(const String& s, float& number);
 bool parseArcFlag(const LChar*& ptr, const LChar* end, bool& flag);
 bool parseArcFlag(const UChar*& ptr, const UChar* end, bool& flag);
 
@@ -50,18 +59,10 @@ bool parseFloatPoint2(const CharType*& current, const CharType* end, FloatPoint&
 template <typename CharType>
 bool parseFloatPoint3(const CharType*& current, const CharType* end, FloatPoint&, FloatPoint&, FloatPoint&);
 
-// SVG allows several different whitespace characters:
-// http://www.w3.org/TR/SVG/paths.html#PathDataBNF
-template <typename CharType>
-inline bool isSVGSpace(CharType c)
-{
-    return c == ' ' || c == '\t' || c == '\n' || c == '\r';
-}
-
 template <typename CharType>
 inline bool skipOptionalSVGSpaces(const CharType*& ptr, const CharType* end)
 {
-    while (ptr < end && isSVGSpace(*ptr))
+    while (ptr < end && isHTMLSpace<CharType>(*ptr))
         ptr++;
     return ptr < end;
 }
@@ -69,7 +70,7 @@ inline bool skipOptionalSVGSpaces(const CharType*& ptr, const CharType* end)
 template <typename CharType>
 inline bool skipOptionalSVGSpacesOrDelimiter(const CharType*& ptr, const CharType* end, char delimiter = ',')
 {
-    if (ptr < end && !isSVGSpace(*ptr) && *ptr != delimiter)
+    if (ptr < end && !isHTMLSpace<CharType>(*ptr) && *ptr != delimiter)
         return false;
     if (skipOptionalSVGSpaces(ptr, end)) {
         if (ptr < end && *ptr == delimiter) {