Adds a trivial menu to WindowTypeLauncher. This was more for me to

ui/aura_shell/examples/window_type_launcher.h

Index: ui/aura_shell/examples/window_type_launcher.h
diff --git a/ui/aura_shell/examples/window_type_launcher.h b/ui/aura_shell/examples/window_type_launcher.h
index a476e72938d806efaa5d854db04e6b04b1ba0d3f..edf75f837da2bca32fc128116d8dcb570a8c20e7 100644
--- a/ui/aura_shell/examples/window_type_launcher.h
+++ b/ui/aura_shell/examples/window_type_launcher.h
@@ -6,10 +6,13 @@
 #define UI_AURA_SHELL_EXAMPLES_WINDOW_TYPE_LAUNCHER_H_
 #pragma once
 
-#include "views/widget/widget_delegate.h"
+#include "views/context_menu_controller.h"
 #include "views/controls/button/button.h"
+#include "views/controls/menu/menu_delegate.h"
+#include "views/widget/widget_delegate.h"
 
 namespace views {
+class MenuRunner;
 class NativeTextButton;
 }
 
@@ -19,16 +22,23 @@ namespace examples {
 // The contents view/delegate of a window that shows some buttons that create
 // various window types.
 class WindowTypeLauncher : public views::WidgetDelegateView,
-                           public views::ButtonListener {
+                           public views::ButtonListener,
+                           public views::MenuDelegate,
+                           public views::ContextMenuController {
  public:
   WindowTypeLauncher();
   virtual ~WindowTypeLauncher();
 
  private:
+  enum MenuCommands {
+    COMMAND_NEW_WINDOW = 1,
+  };
+
   // Overridden from views::View:
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual gfx::Size GetPreferredSize() OVERRIDE;
+  virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE;
 
   // Overridden from views::WidgetDelegate:
   virtual views::View* GetContentsView() OVERRIDE;
@@ -38,8 +48,17 @@ class WindowTypeLauncher : public views::WidgetDelegateView,
   virtual void ButtonPressed(views::Button* sender,
                              const views::Event& event) OVERRIDE;
 
+  // Overriden from views::MenuDelegate:
+  virtual void ExecuteCommand(int id) OVERRIDE;
+
+  // Override from views::ContextMenuController:
+  virtual void ShowContextMenuForView(views::View* source,
+                                      const gfx::Point& p,
+                                      bool is_mouse_gesture) OVERRIDE;
+
   views::NativeTextButton* create_button_;
   views::NativeTextButton* bubble_button_;
+  scoped_ptr<views::MenuRunner> menu_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTypeLauncher);
 };