views/examples: Make SingleSplitViewExample a listener of SingleSplitView control.

views/examples/single_split_view_example.h

Index: views/examples/single_split_view_example.h
diff --git a/views/examples/single_split_view_example.h b/views/examples/single_split_view_example.h
index 64377fb45bdee32d7ff90561e39620b90350f595..6f6e81fc93f42104434e75a8f73d6bc7e3733331 100644
--- a/views/examples/single_split_view_example.h
+++ b/views/examples/single_split_view_example.h
@@ -8,15 +8,13 @@
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "views/controls/single_split_view_listener.h"
 #include "views/examples/example_base.h"
 
-namespace views {
-class SingleSplitView;
-}
-
 namespace examples {
 
-class SingleSplitViewExample : public ExampleBase {
+class SingleSplitViewExample : public ExampleBase,
+                               public views::SingleSplitViewListener {
  public:
   explicit SingleSplitViewExample(ExamplesMain* main);
   virtual ~SingleSplitViewExample();
@@ -25,6 +23,8 @@ class SingleSplitViewExample : public ExampleBase {
   virtual void CreateExampleView(views::View* container) OVERRIDE;
 
  private:
+  virtual bool SplitHandleMoved(views::SingleSplitView* sender) OVERRIDE;
+
   views::SingleSplitView* single_split_view_;
 
   DISALLOW_COPY_AND_ASSIGN(SingleSplitViewExample);