Remove Shell::shelf()|status_area_widget()|launcher()

ash/wm/window_animations.cc

Index: ash/wm/window_animations.cc
diff --git a/ash/wm/window_animations.cc b/ash/wm/window_animations.cc
index 66831b27469b20f4c13e2fe74575932383d149d9..e04c4b1ea9029e07ed5ce1160b29ec0ae8827ba7 100644
--- a/ash/wm/window_animations.cc
+++ b/ash/wm/window_animations.cc
@@ -397,7 +397,7 @@ void AnimateHideWindow_Workspace(aura::Window* window) {
 }
 
 gfx::Rect GetMinimizeRectForWindow(aura::Window* window) {
-  gfx::Rect target_bounds = Shell::GetInstance()->launcher()->
+  gfx::Rect target_bounds = Launcher::ForWindow(window)->

[sky, 2012/10/17 16:25:20]

This should NULL check launcher.

[oshima, 2012/10/17 17:49:43]

There wasn't null check. Why we need now?

[sky, 2012/10/17 21:22:56]

It's a bug. The launcher is lazily created.

       GetScreenBoundsOfItemIconForWindow(window);
   if (target_bounds.IsEmpty()) {
     // Assume the launcher is overflowed, zoom off to the bottom right of the