If the sendername of the first message matches the overall sender, it's name will be hidden, otherwise it will be shown. Bug: 150905003 Test: visually, use Notify, observe sender hidden when first Change-Id: Iea67954b3a54ead641813bae6349cfd7af14320f
If the sendername of the first message matches the overall sender, it's name will be hidden, otherwise it will be shown. Bug: 150905003 Test: visually, use Notify, observe sender hidden when first Change-Id: Iea67954b3a54ead641813bae6349cfd7af14320f