Doris Liu 56ef127df7 Avoid setting mCurFrame to -1
Use the dedicated flag mRunning to check whether the DrawableAnimation
is running, rather than comparing mCurFrame with -1. This CL aims to
simplify the use of mCurFrame.

Bug: 17112962
Change-Id: I15f9e4c102f504b8c806f029949fe9ec872479a5
2015-05-12 10:07:25 -07:00
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