Stops animations when removing a window from its parent

ui/aura/window.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 "ui/aura/window.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 989 matching lines @@
                                              return_tightest,
                                              for_event_handling);
     if (match)
       return match;
   }
 
   return delegate_ ? this : NULL;
 }
 
 void Window::RemoveChildImpl(Window* child, Window* new_parent) {
-  // Stop (and complete) an ongoing animation to make sure bounds are updated
-  // before updating the layers bounds again.
-  if (child->layer() && child->layer()->GetAnimator())
-    child->layer()->GetAnimator()->StopAnimating();
   if (layout_manager_)
     layout_manager_->OnWillRemoveWindowFromLayout(child);
   FOR_EACH_OBSERVER(WindowObserver, observers_, OnWillRemoveWindow(child));
   Window* root_window = child->GetRootWindow();
   Window* new_root_window = new_parent ? new_parent->GetRootWindow() : NULL;
   if (root_window && root_window != new_root_window)
     child->NotifyRemovingFromRootWindow(new_root_window);
 
   gfx::Vector2d offset;
   GetAncestorWithLayer(&offset);
@@ skipping 408 matching lines @@
       return window;
     if (offset)
       *offset += window->bounds().OffsetFromOrigin();
   }
   if (offset)
     *offset = gfx::Vector2d();
   return NULL;
 }
 
 }  // namespace aura