Remove ENTITY_REFERENCE_NODE

Source/core/dom/Node.cpp

Index: Source/core/dom/Node.cpp
diff --git a/Source/core/dom/Node.cpp b/Source/core/dom/Node.cpp
index 1e80af0f00a8650f570082ee40da17996e303b16..aaf9fed13ba166a456faf26a217de30d3b1fb5a4 100644
--- a/Source/core/dom/Node.cpp
+++ b/Source/core/dom/Node.cpp
@@ -150,7 +150,6 @@ void Node::dumpStatistics()
     size_t textNodes = 0;
     size_t cdataNodes = 0;
     size_t commentNodes = 0;
-    size_t entityReferenceNodes = 0;
     size_t entityNodes = 0;
     size_t piNodes = 0;
     size_t documentNodes = 0;
@@ -217,10 +216,6 @@ void Node::dumpStatistics()
                 ++commentNodes;
                 break;
             }
-            case ENTITY_REFERENCE_NODE: {
-                ++entityReferenceNodes;
-                break;
-            }
             case ENTITY_NODE: {
                 ++entityNodes;
                 break;
@@ -264,7 +259,6 @@ void Node::dumpStatistics()
     printf("  Number of Text nodes: %zu\n", textNodes);
     printf("  Number of CDATASection nodes: %zu\n", cdataNodes);
     printf("  Number of Comment nodes: %zu\n", commentNodes);
-    printf("  Number of EntityReference nodes: %zu\n", entityReferenceNodes);
     printf("  Number of Entity nodes: %zu\n", entityNodes);
     printf("  Number of ProcessingInstruction nodes: %zu\n", piNodes);
     printf("  Number of Document nodes: %zu\n", documentNodes);
@@ -496,12 +490,6 @@ String Node::nodeValue() const
 
 void Node::setNodeValue(const String& /*nodeValue*/, ExceptionCode& ec)
 {
-    // NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly
-    if (isReadOnlyNode()) {
-        ec = NO_MODIFICATION_ALLOWED_ERR;
-        return;
-    }
-
     // By default, setting nodeValue has no effect.
 }
 
@@ -1027,11 +1015,6 @@ void Node::checkSetPrefix(const AtomicString& prefix, ExceptionCode& ec)
         return;
     }
 
-    if (isReadOnlyNode()) {
-        ec = NO_MODIFICATION_ALLOWED_ERR;
-        return;
-    }
-
     // FIXME: Raise NAMESPACE_ERR if prefix is malformed per the Namespaces in XML specification.
 
     const AtomicString& nodeNamespaceURI = namespaceURI();
@@ -1688,7 +1671,6 @@ static void appendTextContent(const Node* node, bool convertBRsToNewlines, bool&
     // Fall through.
     case Node::ATTRIBUTE_NODE:
     case Node::ENTITY_NODE:
-    case Node::ENTITY_REFERENCE_NODE:
     case Node::DOCUMENT_FRAGMENT_NODE:
         isNullString = false;
         for (Node* child = node->firstChild(); child; child = child->nextSibling()) {
@@ -1726,7 +1708,6 @@ void Node::setTextContent(const String& text, ExceptionCode& ec)
         case ELEMENT_NODE:
         case ATTRIBUTE_NODE:
         case ENTITY_NODE:
-        case ENTITY_REFERENCE_NODE:
         case DOCUMENT_FRAGMENT_NODE: {
             RefPtr<ContainerNode> container = toContainerNode(this);
             ChildListMutationScope mutation(this);