Reorder

mojo/services/public/cpp/view_manager/view_tree_node_observer.h

Index: mojo/services/public/cpp/view_manager/view_tree_node_observer.h
diff --git a/mojo/services/public/cpp/view_manager/view_tree_node_observer.h b/mojo/services/public/cpp/view_manager/view_tree_node_observer.h
index 116e156d67dc1e46f55d78206a9b1246962cfc9b..d39f74892d328defc03dc0ad00d6947b6fb51a86 100644
--- a/mojo/services/public/cpp/view_manager/view_tree_node_observer.h
+++ b/mojo/services/public/cpp/view_manager/view_tree_node_observer.h
@@ -9,6 +9,8 @@
 
 #include "base/basictypes.h"
 
+#include "mojo/services/public/cpp/view_manager/view_tree_node.h"
+
 namespace gfx {
 class Rect;
 }
@@ -37,6 +39,11 @@ class ViewTreeNodeObserver {
 
   virtual void OnTreeChange(const TreeChangeParams& params) {}
 
+  virtual void OnNodeReordered(ViewTreeNode* node,
+                               ViewTreeNode* relative_node,
+                               OrderDirection direction,
+                               DispositionChangePhase phase) {}
+
   virtual void OnNodeDestroy(ViewTreeNode* node,
                              DispositionChangePhase phase) {}