Track the COOP mismatch in the ProcessAllocationContext

The CL tracks whether a process allocation is caused by a COOP mismatch.
Currently the browser will fail to reuse the process and allocate a new
one when receiving a COOP header in the response under partial site
isolation. The CL tracks this reuse failure when creating the site
instance after receiving the response header. The failure will be passed
to the ProcessAllocationContext when the new site instance tries to
allocate a process.

Bug: 388998723
Change-Id: Iea2135403ad428393e75c2d2966d3ffcabce8ff6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6238439
Reviewed-by: Rakina Zata Amni <rakina@chromium.org>
Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Commit-Queue: Jiacheng Guo <gjc@google.com>
Cr-Commit-Position: refs/heads/main@{#1419680}