Remove unused attachChildrenLazily method and make attach/detachChildren private

Source/core/dom/ContainerNode.h

Index: Source/core/dom/ContainerNode.h
diff --git a/Source/core/dom/ContainerNode.h b/Source/core/dom/ContainerNode.h
index 1af89093e81fbf3bd9dd8d3321511b5229443d47..28dea402f4a5ff20e07055e35e504bf60f6a3726 100644
--- a/Source/core/dom/ContainerNode.h
+++ b/Source/core/dom/ContainerNode.h
@@ -127,11 +127,6 @@ public:
     // node that is of the type CDATA_SECTION_NODE, TEXT_NODE or COMMENT_NODE has changed its value.
     virtual void childrenChanged(bool createdByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
 
-    void attachChildren(const AttachContext& = AttachContext());
-    void attachChildrenLazily();
-    void detachChildren(const AttachContext& = AttachContext());
-    void detachChildrenIfNeeded(const AttachContext& = AttachContext());
-
     void disconnectDescendantFrames();
 
     virtual bool childShouldCreateRenderer(const NodeRenderingContext&) const { return true; }
@@ -158,6 +153,9 @@ private:
     void removeBetween(Node* previousChild, Node* nextChild, Node* oldChild);
     void insertBeforeCommon(Node* nextChild, Node* oldChild);
 
+    void attachChildren(const AttachContext& = AttachContext());
+    void detachChildren(const AttachContext& = AttachContext());
+
     static void dispatchPostAttachCallbacks();
 
     void suspendPostAttachCallbacks();
@@ -208,24 +206,6 @@ inline void ContainerNode::attachChildren(const AttachContext& context)
     }
 }
 
-inline void ContainerNode::attachChildrenLazily()
-{
-    for (Node* child = firstChild(); child; child = child->nextSibling())
-        if (!child->attached())
-            child->lazyAttach();
-}
-
-inline void ContainerNode::detachChildrenIfNeeded(const AttachContext& context)
-{
-    AttachContext childrenContext(context);
-    childrenContext.resolvedStyle = 0;
-
-    for (Node* child = firstChild(); child; child = child->nextSibling()) {
-        if (child->attached())
-            child->detach(childrenContext);
-    }
-}
-
 inline void ContainerNode::detachChildren(const AttachContext& context)
 {
     AttachContext childrenContext(context);