Refreshing widget list when a package containing a widget changes

Bug: 20698931
Change-Id: I50bafac1fc0a855edb1ace633a8a6f87a5c3040e
diff --git a/src/com/android/launcher3/WidgetPreviewLoader.java b/src/com/android/launcher3/WidgetPreviewLoader.java
index 3d50587..3460555 100644
--- a/src/com/android/launcher3/WidgetPreviewLoader.java
+++ b/src/com/android/launcher3/WidgetPreviewLoader.java
@@ -105,7 +105,7 @@
      * sizes (landscape vs portrait).
      */
     private static class CacheDb extends SQLiteOpenHelper {
-        private static final int DB_VERSION = 3;
+        private static final int DB_VERSION = 4;
 
         private static final String TABLE_NAME = "shortcut_and_widget_previews";
         private static final String COLUMN_COMPONENT = "componentName";