Don't request the menu to be shown if there's no items.

b/11361756

Change-Id: Ieb4fe9ca83b2edfe467a65c1d1e604348bdfb82f
diff --git a/src/com/android/mail/compose/ComposeActivity.java b/src/com/android/mail/compose/ComposeActivity.java
index a92efd2..9bd8ad7 100644
--- a/src/com/android/mail/compose/ComposeActivity.java
+++ b/src/com/android/mail/compose/ComposeActivity.java
@@ -1952,10 +1952,10 @@
 
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
-        super.onCreateOptionsMenu(menu);
+        final boolean superCreated = super.onCreateOptionsMenu(menu);
         // Don't render any menu items when there are no accounts.
         if (mAccounts == null || mAccounts.length == 0) {
-            return true;
+            return superCreated;
         }
         MenuInflater inflater = getMenuInflater();
         inflater.inflate(R.menu.compose_menu, menu);