tree 2238f57ec19cc5e8b15591aa279affb485af0349
parent 758b21c884be2535ee7cf3794c21c2727f6a38fc
author Dake Gu <dake@google.com> 1471654177 -0700
committer Dake Gu <dake@google.com> 1471968628 -0700

leanback: fix NPE caused by late loading main fragment.

When main fragment is not created,  pressing RIGHT will NPE.
Also fixed sendKey in test.

Bug 30943877

Change-Id: I0b38de24c06a2b13206c9eede0fda857d3ab25fb
(cherry picked from commit 489c9a861b7cde47efcd5cf6351bc9696786ae41)