update placeholder on package install or restore

Bug: 10778992
Change-Id: I3293d8bab8ae0ef49fc5554531bba5bd6f70932c

src/com/android/launcher3/ShortcutInfo.java

@@ -64,6 +64,12 @@ class ShortcutInfo extends ItemInfo {
     long firstInstallTime;
     int flags = 0;
 
+    /**
+     * If this shortcut is a placeholder, then intent will be a market intent for the package, and
+     * this will hold the original intent from the database.  Otherwise, null.
+     */
+    Intent restoredIntent;
+
     ShortcutInfo() {
         itemType = LauncherSettings.BaseLauncherColumns.ITEM_TYPE_SHORTCUT;
     }
@@ -72,6 +78,21 @@ class ShortcutInfo extends ItemInfo {
         return intent;
     }
 
+    protected Intent getRestoredIntent() {
+        return restoredIntent;
+    }
+
+    /**
+     * Overwrite placeholder data with restored data, or do nothing if this is not a placeholder.
+     */
+    public void restore() {
+        if (restoredIntent != null) {
+            intent = restoredIntent;
+            restoredIntent = null;
+        }
+    }
+
+
     ShortcutInfo(Intent intent, CharSequence title, Bitmap icon) {
         this();
         this.intent = intent;