Makes the maximize/restore button handling

ash/launcher/launcher_view.h

Index: ash/launcher/launcher_view.h
diff --git a/ash/launcher/launcher_view.h b/ash/launcher/launcher_view.h
index c5683835b5cbfef3a1ddee8ef29fed17ccfde5e0..ebcfbf8ee4644dcfa8a97e35fc169bf303a08bd5 100644
--- a/ash/launcher/launcher_view.h
+++ b/ash/launcher/launcher_view.h
@@ -60,6 +60,10 @@ class ASH_EXPORT LauncherView : public views::View,
 
   void Init();
 
+  // Returns the ideal bounds of the specified item, or an empty rect if id
+  // isn't know.
+  gfx::Rect GetIdealBoundsOfItemIcon(LauncherID id);
+
  private:
   class FadeOutAnimationDelegate;
   class StartFadeAnimationDelegate;