Fixup libpac for V8 4.9.385.28 DO NOT MERGE. am: e3d07c2370 am: 43a1ab0c0d am: 04542fcdb2 am: 8a739d8aec  -s ours am: 9866eed9ac am: 2a804e6052 am: 903e4dd310 am: a2ae2c4966 am: ff52f49711
am: 5bb2c7930c  -s ours

Change-Id: Ibe4fb1f8b3429ac9fa58fcdf0ba8776cb5f727da