Fixing issue where shortcuts and widgets were not being removed when the package was uninstalled (Bug 2657997, Bug 6335843)

- Also fixes issue if we are dragging a shortcut/widget and it is removed.
- Also exposes App Info for shortcuts and widgets

Change-Id: I3bd5056f50f20e8b277dde6456df26eac815bcde
diff --git a/src/com/android/launcher2/LauncherAppWidgetInfo.java b/src/com/android/launcher2/LauncherAppWidgetInfo.java
index 844abb5..e5b9473 100644
--- a/src/com/android/launcher2/LauncherAppWidgetInfo.java
+++ b/src/com/android/launcher2/LauncherAppWidgetInfo.java
@@ -48,11 +48,9 @@
      */
     AppWidgetHostView hostView = null;
 
-    /**
-     * Constructor for use with AppWidgets that haven't been instantiated yet.
-     */
-    LauncherAppWidgetInfo(ComponentName providerName) {
+    LauncherAppWidgetInfo(int appWidgetId, ComponentName providerName) {
         itemType = LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET;
+        this.appWidgetId = appWidgetId;
         this.providerName = providerName;
 
         // Since the widget isn't instantiated yet, we don't know these values. Set them to -1
@@ -61,11 +59,6 @@
         spanY = -1;
     }
 
-    LauncherAppWidgetInfo(int appWidgetId) {
-        itemType = LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET;
-        this.appWidgetId = appWidgetId;
-    }
-
     @Override
     void onAddToDatabase(ContentValues values) {
         super.onAddToDatabase(values);