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

ash/wm/gestures/system_pinch_handler.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/wm/gestures/system_pinch_handler.h"
 
 #include "ash/launcher/launcher.h"
 #include "ash/screen_ash.h"
 #include "ash/shell.h"
 #include "ash/wm/property_util.h"
@@ skipping 118 matching lines @@
   if (pinch_factor_ < kPinchThresholdForMinimize) {
     if (wm::IsWindowMaximized(window) || wm::IsWindowFullscreen(window)) {
       const gfx::Rect* restore = GetRestoreBoundsInScreen(window);
       if (restore) {
         phantom_state_ = PHANTOM_WINDOW_MINIMIZED;
         return *restore;
       }
       return window->bounds();
     }
 
-    Launcher* launcher = Shell::GetInstance()->launcher();
+    Launcher* launcher = Launcher::ForWindow(window);
     gfx::Rect rect = launcher->GetScreenBoundsOfItemIconForWindow(target_);
     if (rect.IsEmpty())
       rect = launcher->widget()->GetWindowBoundsInScreen();
     else
       rect.Inset(-8, -8);
     phantom_state_ = PHANTOM_WINDOW_MINIMIZED;
     return rect;
   }
 
   phantom_state_ = PHANTOM_WINDOW_NORMAL;
   return window->bounds();
 }
 
 }  // namespace internal
 }  // namespace ash