tree d611ed7ab6f7280b1a14670e87a135299bb23a59
parent 1a9927435dfaa62e398c671fd8477bbd22fd9988
author Natalie Weizenbaum <nex342@gmail.com> 1430341095 -0700
committer Natalie Weizenbaum <nex342@gmail.com> 1430341095 -0700

Don't crash when mapping stack chains.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1108053006