GitLab

With these two merged:
https://chromium-review.googlesource.com/c/chromium/src/+/904303
https://chromium-review.googlesource.com/c/chromium/src/+/909216
we can enable tcmalloc for mipsel.

Bug: 810356
Change-Id: Idd63cb9a0e1a9582047ad203edf160b0c532f854
Reviewed-on: https://chromium-review.googlesource.com/947948Reviewed-by: Will Harris <wfh@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Dirk Pranke <dpranke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#542685}