Adds more to viewmanager

mojo/services/view_manager/node.h

Index: mojo/services/view_manager/node.h
diff --git a/mojo/services/view_manager/node.h b/mojo/services/view_manager/node.h
index 5892af058e80ae2ae3dd2e9adff0b421a7ace1e7..ed6887428bd19939deb88fdc39f90e6fcb71dab2 100644
--- a/mojo/services/view_manager/node.h
+++ b/mojo/services/view_manager/node.h
@@ -5,6 +5,8 @@
 #ifndef MOJO_SERVICES_VIEW_MANAGER_NODE_H_
 #define MOJO_SERVICES_VIEW_MANAGER_NODE_H_
 
+#include <vector>
+
 #include "base/logging.h"
 #include "mojo/services/view_manager/ids.h"
 #include "mojo/services/view_manager/view_manager_export.h"
@@ -16,6 +18,7 @@ namespace services {
 namespace view_manager {
 
 class NodeDelegate;
+class View;
 
 // Represents a node in the graph. Delegate is informed of interesting events.
 class MOJO_VIEW_MANAGER_EXPORT Node : public aura::WindowObserver {
@@ -33,6 +36,12 @@ class MOJO_VIEW_MANAGER_EXPORT Node : public aura::WindowObserver {
 
   Node* GetParent();
 
+  std::vector<Node*> GetChildren();
+
+  // Sets the view associated with this node. Node does not own its View.
+  void SetView(View* view);
+  View* view() { return view_; }
+
  private:
   // WindowObserver overrides:
   virtual void OnWindowHierarchyChanged(
@@ -40,7 +49,12 @@ class MOJO_VIEW_MANAGER_EXPORT Node : public aura::WindowObserver {
 
   NodeDelegate* delegate_;
   const NodeId id_;
+
+  // Weak pointer to view associated with this node.
+  View* view_;
+
   ViewId view_id_;
+
   aura::Window window_;
 
   DISALLOW_COPY_AND_ASSIGN(Node);