Fixup QUIC copy

This patch fixes a clang build issue caused by a missing include.
Unfortunately, the missing include is in base/ and doing a roll is
non-trivial. Since we don't want to invest in QUIC, this patch just adds
base as a direct copy and removes the DEPS include.

Change-Id: I768cc853cd0f34369390b56379eef9f5dc5c8e27
2193 files changed