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This is an obvious coding error, the wrong variable was used for
checking if an iterator was empty. Depending upon if a specific bit was
set in that random memory location, then we'd get the right/wrong
behavior.

Bug: 842196
Test: Icons load (although they usually did before)
Change-Id: Ie52747f0b03e82ba2915df3f8ce9198a9a22452f
Reviewed-on: https://chromium-review.googlesource.com/1062199Reviewed-by: Timothy Loh <timloh@chromium.org>
Commit-Queue: Jeffrey Kardatzke <jkardatzke@google.com>
Cr-Commit-Position: refs/heads/master@{#559396}