SetBounds for ViewTreeNode.

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 461d29d93ef5892a47f8b602682e3e1795c8126c..116e156d67dc1e46f55d78206a9b1246962cfc9b 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 +9,10 @@
 
 #include "base/basictypes.h"
 
+namespace gfx {
+class Rect;
+}
+
 namespace mojo {
 namespace view_manager {
 
@@ -41,6 +45,11 @@ class ViewTreeNodeObserver {
                                       View* new_view,
                                       DispositionChangePhase phase) {}
 
+  virtual void OnNodeBoundsChange(ViewTreeNode* node,
+                                  const gfx::Rect& old_bounds,
+                                  const gfx::Rect& new_bounds,
+                                  DispositionChangePhase phase) {}
+
  protected:
   virtual ~ViewTreeNodeObserver() {}
 };