Make ifdefs consistent in WebKit/Source/core/

third_party/WebKit/Source/core/dom/Node.cpp

Index: third_party/WebKit/Source/core/dom/Node.cpp
diff --git a/third_party/WebKit/Source/core/dom/Node.cpp b/third_party/WebKit/Source/core/dom/Node.cpp
index aeaa766772c025ce7febc7821a9155f978936b3d..e0cf9f7a7a5c23f9d007a03ca23415f90119389b 100644
--- a/third_party/WebKit/Source/core/dom/Node.cpp
+++ b/third_party/WebKit/Source/core/dom/Node.cpp
@@ -582,7 +582,7 @@ LayoutRect Node::boundingBox() const {
   return LayoutRect();
 }
 
-#ifndef NDEBUG
+#if DCHECK_IS_ON()
 inline static ShadowRoot* oldestShadowRootFor(const Node* node) {
   if (!node->isElementNode())
     return nullptr;
@@ -1556,7 +1556,7 @@ std::ostream& operator<<(std::ostream& ostream, const Node* node) {
   return ostream << *node;
 }
 
-#ifndef NDEBUG
+#if DCHECK_IS_ON()
 
 String Node::toString() const {
   // TODO(tkent): We implemented toString() with operator<<.  We should
@@ -2525,7 +2525,7 @@ v8::Local<v8::Object> Node::associateWithWrapper(
 
 }  // namespace blink
 
-#ifndef NDEBUG
+#if DCHECK_IS_ON()
 
 void showNode(const blink::Node* node) {
   if (node)