commit 205709806da5c07eb640fe256d473f1a64f56e44
author ljagielski <ljagielski@opera.com> Wed Jan 07 20:32:55 2015
committer Commit bot <commit-bot@chromium.org> Wed Jan 07 20:34:29 2015
tree 25650476f06b480ca1be13cd97223007905dff5e
parent b639aca53effcba6978bd37c829745b6a84699cf

LayerAnimator should withdraw from processing animation queue when its delegate becomes nullptr.

BUG=

Review URL: https://codereview.chromium.org/795113002

Cr-Commit-Position: refs/heads/master@{#310354}

ui/compositor/layer_animator.cc

diff --git a/ui/compositor/layer_animator.cc b/ui/compositor/layer_animator.cc
index 39585a7..adff73f 100644
--- a/ui/compositor/layer_animator.cc
+++ b/ui/compositor/layer_animator.cc
@@ -409,7 +409,7 @@
 
 void LayerAnimator::StopAnimatingInternal(bool abort) {
   scoped_refptr<LayerAnimator> retain(this);
-  while (is_animating()) {
+  while (is_animating() && delegate()) {
     // We're going to attempt to finish the first running animation. Let's
     // ensure that it's valid.
     PurgeDeletedAnimations();
@@ -517,6 +517,8 @@
     sequence->Abort(delegate());
   else
     ProgressAnimationToEnd(sequence);
+  if (!delegate())
+    return;
   ProcessQueue();
   UpdateAnimationState();
 }