tree 13354a8868ca70c5e12e032c7a0714de76ae6a03
parent 7d9a5b0fbceef5806f059060d47533b9e699ec28
author Aart Bik <ajcbik@google.com> 1459804741 -0700
committer Aart Bik <ajcbik@google.com> 1459804741 -0700

Move DCHECK into loop.

Rationale:
Since pointer is non-null on loop entry, moving the check
into the while loop (rather than after) gives a more friendly
error message in debug mode when something goes wrong.

BUG=27825731
BUG=27627004

Change-Id: I2ea67b3ab6c4edc6815fea38a436e5c3c194e540