Correct elementMatches filter for datalist.options

third_party/WebKit/Source/core/paint/ThemePainter.cpp

Index: third_party/WebKit/Source/core/paint/ThemePainter.cpp
diff --git a/third_party/WebKit/Source/core/paint/ThemePainter.cpp b/third_party/WebKit/Source/core/paint/ThemePainter.cpp
index 053313536e2eeceb74818ed8157adfbcb287afb4..20f5fd19623ff5a14d8c9a1e018132d4c70cc09b 100644
--- a/third_party/WebKit/Source/core/paint/ThemePainter.cpp
+++ b/third_party/WebKit/Source/core/paint/ThemePainter.cpp
@@ -327,6 +327,8 @@ void ThemePainter::paintSliderTicks(const LayoutObject& o,
   for (unsigned i = 0; HTMLOptionElement* optionElement = options->item(i);
        i++) {
     String value = optionElement->value();
+    if (optionElement->isDisabledFormControl() || value.isEmpty())
+      continue;
     if (!input->isValidValue(value))
       continue;
     double parsedValue =