Stops animations when removing a window from its parent

ui/compositor/layer.cc

Index: ui/compositor/layer.cc
diff --git a/ui/compositor/layer.cc b/ui/compositor/layer.cc
index df67e9075c5cbc775179c05ffe5ddec68b53f2f0..a0a3bca93c8d5a7629a4b910bfaa3d2d0db48004 100644
--- a/ui/compositor/layer.cc
+++ b/ui/compositor/layer.cc
@@ -164,6 +164,12 @@ void Layer::Add(Layer* child) {
 }
 
 void Layer::Remove(Layer* child) {
+  // Current bounds are used to calculate offsets when layers are reparented.
+  // Stop (and complete) an ongoing animation to update the bounds immediately.
+  if (child->GetAnimator()) {
+    child->GetAnimator()->StopAnimatingProperty(
+        ui::LayerAnimationElement::BOUNDS);
+  }
   std::vector<Layer*>::iterator i =
       std::find(children_.begin(), children_.end(), child);
   DCHECK(i != children_.end());