tree 05a7a7423759b7153ee971a9b4a4043e8059feb2
parent f31ca43224f11c63d7e0b6d870e39790e7e14eed
author Wenyi Wang <wenyiw@google.com> 1451343740 -0800
committer Wenyi Wang <wenyiw@google.com> 1451354880 -0800

Backport Interpolator in PhoneCommon to enable some animation on Kitkat

PathInterpolator was added in API level 21, we copied the implementation
of PathInterpolatorCompat -- PathInterpolatorDonut, as
PathInterpolatorBase for pre-L. We couldn't simply import and use it
since PhoneCommon is built as part of the master branch and master
doesn't the include support.v4 library.

Bug: 25629359
Change-Id: I28ff193c79acdfe35d4641530fe4ba238c4b47d5