Preliminary interactive layout of window manager's demo_launcher

mojo/examples/window_manager/debug_panel.h

Index: mojo/examples/window_manager/debug_panel.h
diff --git a/mojo/examples/window_manager/debug_panel.h b/mojo/examples/window_manager/debug_panel.h
index 532ebce14050e34b7f8b152468514dc065170bd2..b6dee32057267909f2639a146174e48b381105a1 100644
--- a/mojo/examples/window_manager/debug_panel.h
+++ b/mojo/examples/window_manager/debug_panel.h
@@ -8,6 +8,7 @@
 #include <string>
 
 #include "mojo/public/interfaces/service_provider/service_provider.mojom.h"
+#include "mojo/services/public/cpp/view_manager/node_observer.h"
 #include "mojo/services/public/interfaces/navigation/navigation.mojom.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/layout/layout_manager.h"
@@ -35,7 +36,9 @@ const SkColor kColors[] = { SK_ColorYELLOW,
 
 // A panel of controls intended to demonstrate the functionality of the window
 // manager.
-class DebugPanel : public views::LayoutManager, public views::ButtonListener {
+ class DebugPanel : public views::LayoutManager,
+                    public views::ButtonListener,
+                    public view_manager::NodeObserver {
  public:
   class Delegate {
    public:
@@ -59,10 +62,17 @@ class DebugPanel : public views::LayoutManager, public views::ButtonListener {
   virtual void ButtonPressed(views::Button* sender,
                              const ui::Event& event) OVERRIDE;
 
+  // NodeObserver overrides:
+  virtual void OnNodeBoundsChanged(view_manager::Node* node,
+                                   const gfx::Rect& old_bounds,
+                                   const gfx::Rect& new_bounds) OVERRIDE;
+
   void Navigate(const std::string& url);
 
   Delegate* delegate_;
   view_manager::Node* node_;
+  views::View* contents_view_;
+  views::Widget* widget_;
 
   views::Label* navigation_target_label_;
   views::RadioButton* navigation_target_new_;