tree 15601cba34fd9aa37907894f70064e9c7a86cae5
parent e7934ffb477ee2d34b58d36dc906122f42e15c71
author Chris Craik <ccraik@google.com> 1472598723 -0700
committer Chris Craik <ccraik@google.com> 1472598727 -0700

Prevent prefetch crash with 0 children

bug:31151978

Change-Id: I03b18fcf5d1a55eb5b7eafaece64f24e1d3dd955