Fixing crash and updating default layout

- Fixing dragging/rotation crash due to runnables referencing old Launcher activity (5122814)
- Updating default layout to add portal and contents (4998213)

Change-Id: I87658e7119a2b86aea25ebc7ecc82ee0ebcffc1e
diff --git a/src/com/android/launcher2/Launcher.java b/src/com/android/launcher2/Launcher.java
index 6d8fd4d..1fa3210 100644
--- a/src/com/android/launcher2/Launcher.java
+++ b/src/com/android/launcher2/Launcher.java
@@ -1139,6 +1139,10 @@
     public void onDestroy() {
         super.onDestroy();
 
+        // Remove all pending runnables
+        mHandler.removeMessages(ADVANCE_MSG);
+        mHandler.removeMessages(0);
+
         // Stop callbacks from LauncherModel
         LauncherApplication app = ((LauncherApplication) getApplication());
         mModel.stopLoader();
@@ -2175,7 +2179,7 @@
         // Otherwise, we are not in spring loaded mode, so don't do anything.
     }
     void exitSpringLoadedDragModeDelayed(final boolean successfulDrop, boolean extendedDelay) {
-        mWorkspace.postDelayed(new Runnable() {
+        mHandler.postDelayed(new Runnable() {
             @Override
             public void run() {
                 exitSpringLoadedDragMode();