Add logs for PackageUpdatedTask

* That's the bit that updates new packages for work profile,
at least from command line.
* There is variability in how long it could take work profile
apps to show up, from 2-8 seconds.

Bug: 243688989
Change-Id: I710befc5f17b4a16bff523eb03f1e88975cafd43

src/com/android/launcher3/model/BaseModelUpdateTask.java

@@ -151,7 +151,12 @@ public abstract class BaseModelUpdateTask implements ModelUpdateTask {
     }
 
     public void bindApplicationsIfNeeded() {
-        if (mAllAppsList.getAndResetChangeFlag()) {
+        boolean changeFlag = mAllAppsList.getAndResetChangeFlag();
+        if (TestProtocol.sDebugTracing) {
+            Log.d(WORK_TAB_MISSING, "bindApplicationsIfNeeded changeFlag? " +
+                    changeFlag);
+        }
+        if (changeFlag) {
             AppInfo[] apps = mAllAppsList.copyData();
             int flags = mAllAppsList.getFlags();
             scheduleCallbackTask(c -> c.bindAllApplications(apps, flags));