commit 60b59042d1f5a1449de049a7f7adb3d6e40b8b06
author Yohei Yukawa <yukawa@google.com> Mon Feb 22 20:02:27 2016 -0800
committer Yohei Yukawa <yukawa@google.com> Mon Feb 22 20:02:27 2016 -0800
tree 9ec8626366e938a2fa790ce772bb2fbdd1ea0c88
parent 706fce9bb0e044f281bf12742c406964b18e9190

Fix runtime crash on KitKat and prior.

This is a follow up CL to the previous CL [1], in which we started
calling Window#setNavigationBarColor(int) when the window visibility is
changed.

One thing we missed is that calling Window#setNavigationBarColor(int) on
KitKant or prior devices would result in a runtime crash.  Hence with
this CL we do not call that method unless the OS version is N or leter,
because specifying Color.TRANSPARENT would make sense on N+ devices.

  [1]: I14d9490e00caa852035a05830e76114cbe6af8f2
       6c04339c5aadb5118b0e0a8178b3d569956bbad7

Bug: 22564251
Bug: 27302540
Change-Id: Ib7299dd8c3dad4271f8fac453e690c83bda4a954