Add in bytes saved reporting for subresource redirect

Bug: 960513
Change-Id: Ibf00a406463095e4e49a85c6295dbea6289ed4e5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1659645
Reviewed-by: Robert Ogden <robertogden@chromium.org>
Reviewed-by: Tarun Bansal <tbansal@chromium.org>
Commit-Queue: Sean Harrison <harrisonsean@chromium.org>
Cr-Commit-Position: refs/heads/master@{#669745}
2 files changed