am d200aa4c: am a546e5be: am ba1e3915: am 59123b9b: Merge "When closing task stack remove reference to display content." into mnc-dev

* commit 'd200aa4ca283e92268ed2d8919570ffceffa52f5':
  When closing task stack remove reference to display content.

2 files changed, 4 insertions, 3 deletions

diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 5d6df2679b81..4db0b1ee5122 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -203,7 +203,9 @@ class DisplayContent {
     }
 
     void moveStack(TaskStack stack, boolean toTop) {
-        mStacks.remove(stack);
+        if (!mStacks.remove(stack)) {
+            Slog.wtf(TAG, "moving stack that was not added: " + stack, new Throwable());
+        }
         mStacks.add(toTop ? mStacks.size() : 0, stack);
     }
 
diff --git a/services/core/java/com/android/server/wm/TaskStack.java b/services/core/java/com/android/server/wm/TaskStack.java
index 45450320828b..794b49c8cb19 100644
--- a/services/core/java/com/android/server/wm/TaskStack.java
+++ b/services/core/java/com/android/server/wm/TaskStack.java
@@ -385,8 +385,6 @@ public class TaskStack {
         }
 
         close();
-
-        mDisplayContent = null;
     }
 
     void resetAnimationBackgroundAnimator() {
@@ -518,6 +516,7 @@ public class TaskStack {
             mDimLayer.destroySurface();
             mDimLayer = null;
         }
+        mDisplayContent = null;
     }
 
     public void dump(String prefix, PrintWriter pw) {