Revert "Revert "Add Peek [1/2]""

This reverts commit cfc52d2cfa20bdcfead074f09515bfc18e5425b6.

Change-Id: Id748abe643bc5c0eff76435ac878b7bcfee5219a
Merge "Revert "Revert "Add Peek [1/2]""" into android-4.4