Add Logs to track app uninstall and icon removal

Some users are affected by a bug that keeps orphaned app icons after a
package is uninstalled. Since we are unable to pinpoint to what exactly
is causing this, we're adding logs so we could tell where exactly things
are failing.

Bug: 124817089
Change-Id: If168935115a7d323fd60c2b19426c1dbd43dbce3

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

@@ -15,6 +15,8 @@
  */
 package com.android.launcher3.model;
 
+import static com.android.launcher3.WorkspaceItemInfo.FLAG_AUTOINSTALL_ICON;
+
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -53,8 +55,6 @@ import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
 
-import static com.android.launcher3.WorkspaceItemInfo.FLAG_AUTOINSTALL_ICON;
-
 /**
  * Handles updates due to changes in package manager (app installed/updated/removed)
  * or when a user availability changes.
@@ -132,6 +132,7 @@ public class PackageUpdatedTask extends BaseModelUpdateTask {
                 break;
             case OP_REMOVE: {
                 for (int i = 0; i < N; i++) {
+                    FileLog.d(TAG, "Removing app icon" + packages[i]);
                     iconCache.removeIconsForPkg(packages[i], mUser);
                 }
                 // Fall through