am 34b4406d: am a44049e1: Fix NPE in getCallProviderLabel

* commit '34b4406dccd2ddfcdb2846fc6d30f946bcded1ff':
  Fix NPE in getCallProviderLabel
diff --git a/InCallUI/src/com/android/incallui/CallCardPresenter.java b/InCallUI/src/com/android/incallui/CallCardPresenter.java
index 5f1fe3b..b66f417 100644
--- a/InCallUI/src/com/android/incallui/CallCardPresenter.java
+++ b/InCallUI/src/com/android/incallui/CallCardPresenter.java
@@ -576,7 +576,8 @@
      */
     private String getCallProviderLabel(Call call) {
         PhoneAccount account = getAccountForCall(call);
-        if (account != null && getTelecomManager().hasMultipleCallCapableAccounts()) {
+        if (account != null && !TextUtils.isEmpty(account.getLabel())
+                && getTelecomManager().hasMultipleCallCapableAccounts()) {
             return account.getLabel().toString();
         }
         return null;