Added labels under the windows in OverviewMode displaying their current name.

ash/wm/overview/window_selector_window.h

Index: ash/wm/overview/window_selector_window.h
diff --git a/ash/wm/overview/window_selector_window.h b/ash/wm/overview/window_selector_window.h
index 0764aacf71b774a29d7c35658c0dedf83efd9986..35b3e7ee88db8a653f63dd7d9bb86b8f935b2642 100644
--- a/ash/wm/overview/window_selector_window.h
+++ b/ash/wm/overview/window_selector_window.h
@@ -8,7 +8,6 @@
 #include "ash/wm/overview/scoped_transform_overview_window.h"
 #include "ash/wm/overview/window_selector_item.h"
 #include "base/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
 #include "ui/gfx/rect.h"
 #include "ui/views/controls/button/button.h"
 
@@ -36,6 +35,7 @@ class WindowSelectorWindow : public WindowSelectorItem,
   virtual aura::Window* TargetedWindow(const aura::Window* target) OVERRIDE;
   virtual void RestoreWindowOnExit(aura::Window* window) OVERRIDE;
   virtual aura::Window* SelectionWindow() OVERRIDE;
+  virtual const aura::Window* SelectionWindow() const OVERRIDE;
   virtual void RemoveWindow(const aura::Window* window) OVERRIDE;
   virtual bool empty() const OVERRIDE;
   virtual void PrepareForOverview() OVERRIDE;
@@ -46,7 +46,6 @@ class WindowSelectorWindow : public WindowSelectorItem,
   // views::ButtonListener:
   virtual void ButtonPressed(views::Button* sender,
                              const ui::Event& event) OVERRIDE;
-
  private:
   // Creates the close button window if it does not exist and updates the bounds
   // to match the window selector item.