GitLab

If the transfer buffer is resized, pointers returned by GetResultAs are
invalidated. This changes GetResultAs to return a smart pointer class
that allows us to detect if a result pointer is still in use when the
buffer is resized and safely crash.

Bug: 905889, 905890
Change-Id: I67b243a779f1a2996e7c13740c5ebdcfda16d0d3
Reviewed-on: https://chromium-review.googlesource.com/c/1336753
Commit-Queue: James Darpinian <jdarpinian@chromium.org>
Reviewed-by: Antoine Labour <piman@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608856}