Update tokenizer to match spec

sky/engine/core/html/parser/MarkupTokenizerInlines.h

Index: sky/engine/core/html/parser/MarkupTokenizerInlines.h
diff --git a/sky/engine/core/html/parser/MarkupTokenizerInlines.h b/sky/engine/core/html/parser/MarkupTokenizerInlines.h
index fbd4a6d4ba4113800816d88db69d061c6d57e455..13747c611ffe3eddac916c354b25c309c19463ad 100644
--- a/sky/engine/core/html/parser/MarkupTokenizerInlines.h
+++ b/sky/engine/core/html/parser/MarkupTokenizerInlines.h
@@ -34,7 +34,18 @@ namespace blink {
 
 inline bool isTokenizerWhitespace(UChar cc)
 {
-    return cc == ' ' || cc == '\x0A' || cc == '\x09' || cc == '\x0C';
+    return cc == ' ' || cc == '\x0A';
+}
+
+inline bool isTokenizerTagName(UChar cc)
+{
+    if (cc >= 'a' && cc <= 'z')
+        return true;
+    if (cc >= 'A' && cc <= 'Z')
+        return true;
+    if (cc >= '0' && cc <= '9')
+        return true;
+    return cc == '-' || cc == '_' || cc == '.';
 }
 
 inline void advanceStringAndASSERTIgnoringCase(SegmentedString& source, const char* expectedCharacters)