GitLab

This moves nearly all net/third_party/quiche source files into
//net/third_party/quiche/BUILD.gn, so that they can be given visibility for
absl later.

Change-Id: Ifa2902002f5f7a2b1b5005f6c3f337439af69ce3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2020686Reviewed-by: Ryan Hamilton <rch@chromium.org>
Reviewed-by: Bence Béky <bnc@chromium.org>
Commit-Queue: Victor Vasiliev <vasilvv@chromium.org>
Cr-Commit-Position: refs/heads/master@{#735250}