Couple of tweaks for tables:

ui/views/examples/table_example.h

Index: ui/views/examples/table_example.h
diff --git a/ui/views/examples/table_example.h b/ui/views/examples/table_example.h
index f7ed268647ee96a3b55aae9362eb41e4674d2f7d..8eab347b5a110cda4ca8ab864ecd3b0b22aba5d5 100644
--- a/ui/views/examples/table_example.h
+++ b/ui/views/examples/table_example.h
@@ -12,6 +12,7 @@
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/models/table_model.h"
 #include "ui/views/controls/button/button.h"
+#include "ui/views/controls/table/table_grouper.h"
 #include "ui/views/controls/table/table_view.h"
 #include "ui/views/controls/table/table_view_observer.h"
 #include "ui/views/examples/example_base.h"
@@ -27,10 +28,12 @@ class TableView;
 
 namespace examples {
 
-class TableExample : public ExampleBase,
-                     public ui::TableModel,
-                     public TableViewObserver,
-                     public ButtonListener {
+class TableExample
+    : public ExampleBase,
+      public ui::TableModel,
+      public views::TableGrouper,

[tfarina, 2013/01/08 23:01:24]

nit: you shouldn't need views:: here, as TableExample is under views::examples
namespace.

+      public TableViewObserver,
+      public ButtonListener {
  public:
   TableExample();
   virtual ~TableExample();
@@ -44,6 +47,9 @@ class TableExample : public ExampleBase,
   virtual gfx::ImageSkia GetIcon(int row) OVERRIDE;
   virtual void SetObserver(ui::TableModelObserver* observer) OVERRIDE;
 
+  // views::TableGrouper:
+  virtual void GetGroupRange(int model_index, GroupRange* range) OVERRIDE;
+
   // TableViewObserver:
   virtual void OnSelectionChanged() OVERRIDE;
   virtual void OnDoubleClick() OVERRIDE;