diff --git a/sdk/lib/framework/layout.dart b/sdk/lib/framework/layout.dart
index 3771a2e8ff4..2ade1e97090 100644
--- a/sdk/lib/framework/layout.dart
+++ b/sdk/lib/framework/layout.dart
@@ -74,7 +74,7 @@ abstract class RenderNode extends AbstractNode {
   // node out, and any other nodes who happen to know exactly what
   // kind of node that is.
   ParentData parentData;
-  void setupPos(RenderNode child) {
+  void setParentData(RenderNode child) {
     // override this to setup .parentData correctly for your class
     if (child.parentData is! ParentData)
       child.parentData = new ParentData();
@@ -83,7 +83,7 @@ abstract class RenderNode extends AbstractNode {
   void adoptChild(RenderNode child) { // only for use by subclasses
     // call this whenever you decide a node is a child
     assert(child != null);
-    setupPos(child);
+    setParentData(child);
     super.adoptChild(child);
   }
   void dropChild(RenderNode child) { // only for use by subclasses
@@ -311,7 +311,7 @@ class RenderCSSContainer extends RenderCSS with ContainerRenderNodeMixin<RenderC
 
   RenderCSSContainer(debug) : super(debug);
 
-  void setupPos(RenderNode child) {
+  void setParentData(RenderNode child) {
     if (child.parentData is! CSSParentData)
       child.parentData = new CSSParentData();
   }
@@ -365,7 +365,7 @@ class RenderCSSFlex extends RenderCSSContainer {
     markNeedsLayout();
   }
 
-  void setupPos(RenderNode child) {
+  void setParentData(RenderNode child) {
     if (child.parentData is! FlexBoxParentData)
       child.parentData = new FlexBoxParentData();
   }
@@ -422,7 +422,7 @@ class RenderCSSStack extends RenderCSSContainer {
 
   RenderCSSStack(debug) : super(debug);
 
-  void setupPos(RenderNode child) {
+  void setParentData(RenderNode child) {
     if (child.parentData is! StackParentData)
       child.parentData = new StackParentData();
   }
diff --git a/sdk/lib/framework/layout2.dart b/sdk/lib/framework/layout2.dart
index a3d348be3c3..44b073eae46 100644
--- a/sdk/lib/framework/layout2.dart
+++ b/sdk/lib/framework/layout2.dart
@@ -48,7 +48,7 @@ abstract class RenderNode extends AbstractNode {
   // node out, and any other nodes who happen to know exactly what
   // kind of node that is.
   ParentData parentData;
-  void setupPos(RenderNode child) {
+  void setParentData(RenderNode child) {
     // override this to setup .parentData correctly for your class
     if (child.parentData is! ParentData)
       child.parentData = new ParentData();
@@ -57,7 +57,7 @@ abstract class RenderNode extends AbstractNode {
   void adoptChild(RenderNode child) { // only for use by subclasses
     // call this whenever you decide a node is a child
     assert(child != null);
-    setupPos(child);
+    setParentData(child);
     super.adoptChild(child);
   }
   void dropChild(RenderNode child) { // only for use by subclasses
@@ -404,7 +404,7 @@ class BoxParentData extends ParentData {
 
 abstract class RenderBox extends RenderNode {
 
-  void setupPos(RenderNode child) {
+  void setParentData(RenderNode child) {
     if (child.parentData is! BoxParentData)
       child.parentData = new BoxParentData();
   }
@@ -568,7 +568,7 @@ class RenderBlock extends RenderBox with ContainerRenderNodeMixin<RenderBox, Blo
     }
   }
 
-  void setupPos(RenderBox child) {
+  void setParentData(RenderBox child) {
     if (child.parentData is! BlockParentData)
       child.parentData = new BlockParentData();
   }