Messaging: Style even more dialogs properly

Somehow some dialogs use the theme but some need the style set manually

Change-Id: I386a0e43c10d328088066961b75a162bf2c351c1

src/com/android/messaging/ui/conversation/ConversationFragment.java

@@ -822,7 +822,7 @@ public class ConversationFragment extends Fragment implements ConversationDataLi
             return true;
         } else if (itemId == R.id.action_delete) {
             if (isReadyForDeleteAction()) {
-                new AlertDialog.Builder(getActivity())
+                new AlertDialog.Builder(getActivity(), R.style.AlertDialogTheme)
                         .setTitle(getResources().getQuantityString(
                                 R.plurals.delete_conversations_confirmation_dialog_title, 1))
                         .setPositiveButton(R.string.delete_conversation_confirmation_button,

src/com/android/messaging/ui/conversation/MessageDetailsDialog.java

@@ -70,7 +70,7 @@ public class MessageDetailsDialog {
 
     private static void showDialog(final Context context, String messageDetails) {
         if (!TextUtils.isEmpty(messageDetails)) {
-            new AlertDialog.Builder(context)
+            new AlertDialog.Builder(context, R.style.AlertDialogTheme)
                     .setTitle(R.string.message_details_title)
                     .setMessage(messageDetails)
                     .setCancelable(true)