Fixing folder icon not getting redrawn when the contents change

> Removing parent from ItemOperator as inconsistant values were
being passed in workspace and folderPagedView
> Fixing itemChanged causing multiple redraws, by passing a
'animate' parameter to explicitely request animation

Bug:27740161
Bug:28015426

Change-Id: Ide7b266bde9aad5f450a3f808a59182fe01a5110
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index 60c71cf..f2b307b 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -1986,7 +1986,7 @@
                                         // Item is in a user folder
                                         FolderInfo folderInfo =
                                                 findOrMakeFolder(sBgFolders, container);
-                                        folderInfo.add(info);
+                                        folderInfo.add(info, false);
                                         break;
                                     }
                                     sBgItemsIdMap.put(info.id, info);