Drop unnecessary RadioNodeList::m_onlyMatchImgElements member

Source/core/html/RadioNodeList.cpp

Index: Source/core/html/RadioNodeList.cpp
diff --git a/Source/core/html/RadioNodeList.cpp b/Source/core/html/RadioNodeList.cpp
index e3a4ad92b16429bcc1d3e25c919d7a0360d0336e..1359849bf8c0b539bfbf2e507a74c93ca6499c26 100644
--- a/Source/core/html/RadioNodeList.cpp
+++ b/Source/core/html/RadioNodeList.cpp
@@ -40,7 +40,6 @@ using namespace HTMLNames;
 RadioNodeList::RadioNodeList(ContainerNode& rootNode, const AtomicString& name, CollectionType type)
     : LiveNodeList(rootNode, type, InvalidateForFormControls, isHTMLFormElement(rootNode) ? NodeListIsRootedAtDocument : NodeListIsRootedAtNode)
     , m_name(name)
-    , m_onlyMatchImgElements(type == RadioImgNodeListType)
 {
     ScriptWrappable::init(this);
 }
@@ -48,7 +47,7 @@ RadioNodeList::RadioNodeList(ContainerNode& rootNode, const AtomicString& name,
 RadioNodeList::~RadioNodeList()
 {
 #if !ENABLE(OILPAN)
-    ownerNode().nodeLists()->removeCache(this, m_onlyMatchImgElements ? RadioImgNodeListType : RadioNodeListType, m_name);
+    ownerNode().nodeLists()->removeCache(this, type(), m_name);
 #endif
 }
 
@@ -64,7 +63,7 @@ static inline HTMLInputElement* toRadioButtonInputElement(Element& element)
 
 String RadioNodeList::value() const
 {
-    if (m_onlyMatchImgElements)
+    if (shouldOnlyMatchImgElements())
         return String();
     unsigned length = this->length();
     for (unsigned i = 0; i < length; ++i) {
@@ -78,7 +77,7 @@ String RadioNodeList::value() const
 
 void RadioNodeList::setValue(const String& value)
 {
-    if (m_onlyMatchImgElements)
+    if (shouldOnlyMatchImgElements())
         return;
     unsigned length = this->length();
     for (unsigned i = 0; i < length; ++i) {
@@ -97,7 +96,7 @@ bool RadioNodeList::matchesByIdOrName(const Element& testElement) const
 
 bool RadioNodeList::checkElementMatchesRadioNodeListFilter(const Element& testElement) const
 {
-    ASSERT(!m_onlyMatchImgElements);
+    ASSERT(!shouldOnlyMatchImgElements());
     ASSERT(isHTMLObjectElement(testElement) || testElement.isFormControlElement());
     if (isHTMLFormElement(ownerNode())) {
         HTMLFormElement* formElement = toHTMLElement(testElement).formOwner();
@@ -110,7 +109,7 @@ bool RadioNodeList::checkElementMatchesRadioNodeListFilter(const Element& testEl
 
 bool RadioNodeList::elementMatches(const Element& element) const
 {
-    if (m_onlyMatchImgElements) {
+    if (shouldOnlyMatchImgElements()) {
         if (!isHTMLImageElement(element))
             return false;