Fix bug: swiped apps in Recents come back on rotate

Bug: 7409398

packages/SystemUI/src/com/android/systemui/recent/RecentTasksLoader.java

@@ -138,6 +138,10 @@ public class RecentTasksLoader implements View.OnTouchListener {
         return mLoadedTasks;
     }
 
+    public void remove(TaskDescription td) {
+        mLoadedTasks.remove(td);
+    }
+
     public boolean isFirstScreenful() {
         return mFirstScreenful;
     }

packages/SystemUI/src/com/android/systemui/recent/RecentsPanelView.java

@@ -689,6 +689,7 @@ public class RecentsPanelView extends FrameLayout implements OnItemClickListener
         }
         if (DEBUG) Log.v(TAG, "Jettison " + ad.getLabel());
         mRecentTaskDescriptions.remove(ad);
+        mRecentTasksLoader.remove(ad);
 
         // Handled by widget containers to enable LayoutTransitions properly
         // mListAdapter.notifyDataSetChanged();