Philip Quinn c0c18cafef Null-check mNavigationBar when returning its view.
Without this check there's no way to avoid a NullPointerException if
getNavigationBarView() is called before the navigation bar fragment is
created.

Bug: 36852229
Bug: 37330416
Bug: 37331698
Fixes: 36508501
Test: make -j; cannot reproduce bugs.
Change-Id: Ia3c9b4eaea26b78cdc39a446918047eb1f440d70
2017-04-14 16:54:42 -07:00
2017-04-11 09:51:40 -07:00
2017-04-13 16:39:44 -07:00
Description
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5.1 GiB
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