Fix 2617318 - NPE in Launcher2.

Applies the fix in change Id91712fa to widgets.

Bug: 2617318
Change-Id: I1e1dac6238a26497eacc23b161df171ae40bb588
diff --git a/src/com/android/launcher2/Workspace.java b/src/com/android/launcher2/Workspace.java
index 0a658a4..f65d956 100644
--- a/src/com/android/launcher2/Workspace.java
+++ b/src/com/android/launcher2/Workspace.java
@@ -1403,7 +1403,7 @@
                             final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag;
                             final AppWidgetProviderInfo provider =
                                     widgets.getAppWidgetInfo(info.appWidgetId);
-                            if (provider == null) {
+                            if (provider != null) {
                                 for (String packageName: packageNames) {
                                     if (packageName.equals(provider.provider.getPackageName())) {
                                         // TODO: This should probably be done on a worker thread