Move the word commit code to UserDictionaryAddWordContent.

...and call it from the fragment too.

Bug: 6026080
Change-Id: Icb83fd60ed33dfa593124ed0af6b9fff4b63f1f5

src/com/android/settings/inputmethod/UserDictionaryAddWordFragment.java

@@ -68,6 +68,7 @@ public class UserDictionaryAddWordFragment extends Fragment {
     @Override
     public void onPause() {
         super.onPause();
+        mContents.apply(getActivity());
         // We are being hidden: commit changes to the user dictionary
     }
 }