Update :in-range/:out-of-range when steppable min/max/value changes.

third_party/WebKit/Source/core/html/forms/InputType.cpp

Index: third_party/WebKit/Source/core/html/forms/InputType.cpp
diff --git a/third_party/WebKit/Source/core/html/forms/InputType.cpp b/third_party/WebKit/Source/core/html/forms/InputType.cpp
index 8aa3a4a9274f9b36b6e5790d1aa81875bfd371f8..6fcf15a5adc8404e150a6c5ff8b3410206667172 100644
--- a/third_party/WebKit/Source/core/html/forms/InputType.cpp
+++ b/third_party/WebKit/Source/core/html/forms/InputType.cpp
@@ -297,6 +297,13 @@ bool InputType::isOutOfRange(const String& value) const {
           numericValue > stepRange.maximum());
 }
 
+void InputType::inRangeChanged() const {
+  if (isSteppable()) {
+    element().pseudoStateChanged(CSSSelector::PseudoInRange);
+    element().pseudoStateChanged(CSSSelector::PseudoOutOfRange);
+  }
+}
+
 bool InputType::stepMismatch(const String& value) const {
   if (!isSteppable())
     return false;